Merge rust-bitcoin/rust-bitcoin#2056: Bump actions/checkout from 2 to 4

ddcf705f6a Bump actions/checkout from 2 to 4 (dependabot[bot])

Pull request description:

  Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
  <details>
  <summary>Release notes</summary>
  <p><em>Sourced from <a href="https://github.com/actions/checkout/releases">actions/checkout's releases</a>.</em></p>
  <blockquote>
  <h2>v4.0.0</h2>
  <h2>What's Changed</h2>
  <ul>
  <li>Update default runtime to node20 by <a href="https://github.com/takost"><code>@takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
  <li>Support fetching without the --progress option by <a href="https://github.com/simonbaird"><code>@simonbaird</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
  <li>Release 4.0.0 by <a href="https://github.com/takost"><code>@takost</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1447">actions/checkout#1447</a></li>
  </ul>
  <h2>New Contributors</h2>
  <ul>
  <li><a href="https://github.com/takost"><code>@takost</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1436">actions/checkout#1436</a></li>
  <li><a href="https://github.com/simonbaird"><code>@simonbaird</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1067">actions/checkout#1067</a></li>
  </ul>
  <p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v4.0.0">https://github.com/actions/checkout/compare/v3...v4.0.0</a></p>
  <h2>v3.6.0</h2>
  <h2>What's Changed</h2>
  <ul>
  <li>Mark test scripts with Bash'isms to be run via Bash by <a href="https://github.com/dscho"><code>@dscho</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1377">actions/checkout#1377</a></li>
  <li>Add option to fetch tags even if fetch-depth &gt; 0 by <a href="https://github.com/RobertWieczoreck"><code>@RobertWieczoreck</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
  <li>Release 3.6.0 by <a href="https://github.com/luketomlinson"><code>@luketomlinson</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
  </ul>
  <h2>New Contributors</h2>
  <ul>
  <li><a href="https://github.com/RobertWieczoreck"><code>@RobertWieczoreck</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/579">actions/checkout#579</a></li>
  <li><a href="https://github.com/luketomlinson"><code>@luketomlinson</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1437">actions/checkout#1437</a></li>
  </ul>
  <p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.3...v3.6.0">https://github.com/actions/checkout/compare/v3.5.3...v3.6.0</a></p>
  <h2>v3.5.3</h2>
  <h2>What's Changed</h2>
  <ul>
  <li>Fix: Checkout Issue in self hosted runner due to faulty submodule check-ins by <a href="https://github.com/megamanics"><code>@megamanics</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
  <li>Fix typos found by codespell by <a href="https://github.com/DimitriPapadopoulos"><code>@DimitriPapadopoulos</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
  <li>Add support for sparse checkouts by <a href="https://github.com/dscho"><code>@dscho</code></a> and <a href="https://github.com/dfdez"><code>@dfdez</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
  <li>Release v3.5.3 by <a href="https://github.com/TingluoHuang"><code>@TingluoHuang</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1376">actions/checkout#1376</a></li>
  </ul>
  <h2>New Contributors</h2>
  <ul>
  <li><a href="https://github.com/megamanics"><code>@megamanics</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1196">actions/checkout#1196</a></li>
  <li><a href="https://github.com/DimitriPapadopoulos"><code>@DimitriPapadopoulos</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1287">actions/checkout#1287</a></li>
  <li><a href="https://github.com/dfdez"><code>@dfdez</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1369">actions/checkout#1369</a></li>
  </ul>
  <p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3...v3.5.3">https://github.com/actions/checkout/compare/v3...v3.5.3</a></p>
  <h2>v3.5.2</h2>
  <h2>What's Changed</h2>
  <ul>
  <li>Fix: Use correct API url / endpoint in GHES by <a href="https://github.com/fhammerl"><code>@fhammerl</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1289">actions/checkout#1289</a> based on <a href="https://redirect.github.com/actions/checkout/issues/1286">#1286</a> by <a href="https://github.com/1newsr"><code>@1newsr</code></a></li>
  </ul>
  <p><strong>Full Changelog</strong>: <a href="https://github.com/actions/checkout/compare/v3.5.1...v3.5.2">https://github.com/actions/checkout/compare/v3.5.1...v3.5.2</a></p>
  <h2>v3.5.1</h2>
  <h2>What's Changed</h2>
  <ul>
  <li>Improve checkout performance on Windows runners by upgrading <code>@actions/github</code> dependency by <a href="https://github.com/BrettDong"><code>@BrettDong</code></a> in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
  </ul>
  <h2>New Contributors</h2>
  <ul>
  <li><a href="https://github.com/BrettDong"><code>@BrettDong</code></a> made their first contribution in <a href="https://redirect.github.com/actions/checkout/pull/1246">actions/checkout#1246</a></li>
  </ul>
  <!-- raw HTML omitted -->
  </blockquote>
  <p>... (truncated)</p>
  </details>
  <details>
  <summary>Changelog</summary>
  <p><em>Sourced from <a href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's changelog</a>.</em></p>
  <blockquote>
  <h1>Changelog</h1>
  <h2>v4.0.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1067">Support fetching without the --progress option</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1436">Update to node20</a></li>
  </ul>
  <h2>v3.6.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1377">Fix: Mark test scripts with Bash'isms to be run via Bash</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/579">Add option to fetch tags even if fetch-depth &gt; 0</a></li>
  </ul>
  <h2>v3.5.3</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1196">Fix: Checkout fail in self-hosted runners when faulty submodule are checked-in</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1287">Fix typos found by codespell</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1369">Add support for sparse checkouts</a></li>
  </ul>
  <h2>v3.5.2</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1289">Fix api endpoint for GHES</a></li>
  </ul>
  <h2>v3.5.1</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1246">Fix slow checkout on Windows</a></li>
  </ul>
  <h2>v3.5.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1237">Add new public key for known_hosts</a></li>
  </ul>
  <h2>v3.4.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1209">Upgrade codeql actions to v2</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1210">Upgrade dependencies</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1225">Upgrade <code>@actions/io</code></a></li>
  </ul>
  <h2>v3.3.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1045">Implement branch list using callbacks from exec function</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1050">Add in explicit reference to private checkout options</a></li>
  <li>[Fix comment typos (that got added in <a href="https://redirect.github.com/actions/checkout/issues/770">#770</a>)](<a href="https://redirect.github.com/actions/checkout/pull/1057">actions/checkout#1057</a>)</li>
  </ul>
  <h2>v3.2.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/942">Add GitHub Action to perform release</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/967">Fix status badge</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1002">Replace datadog/squid with ubuntu/squid Docker image</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/964">Wrap pipeline commands for submoduleForeach in quotes</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1029">Update <code>@actions/io</code> to 1.1.2</a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/1039">Upgrading version to 3.2.0</a></li>
  </ul>
  <h2>v3.1.0</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/939">Use <code>@actions/core</code> <code>saveState</code> and <code>getState</code></a></li>
  <li><a href="https://redirect.github.com/actions/checkout/pull/922">Add <code>github-server-url</code> input</a></li>
  </ul>
  <h2>v3.0.2</h2>
  <ul>
  <li><a href="https://redirect.github.com/actions/checkout/pull/770">Add input <code>set-safe-directory</code></a></li>
  </ul>
  <h2>v3.0.1</h2>
  <!-- raw HTML omitted -->
  </blockquote>
  <p>... (truncated)</p>
  </details>
  <details>
  <summary>Commits</summary>
  <ul>
  <li><a href="3df4ab11eb"><code>3df4ab1</code></a> Release 4.0.0 (<a href="https://redirect.github.com/actions/checkout/issues/1447">#1447</a>)</li>
  <li><a href="8b5e8b7687"><code>8b5e8b7</code></a> Support fetching without the --progress option (<a href="https://redirect.github.com/actions/checkout/issues/1067">#1067</a>)</li>
  <li><a href="97a652b800"><code>97a652b</code></a> Update default runtime to node20 (<a href="https://redirect.github.com/actions/checkout/issues/1436">#1436</a>)</li>
  <li><a href="f43a0e5ff2"><code>f43a0e5</code></a> Release 3.6.0 (<a href="https://redirect.github.com/actions/checkout/issues/1437">#1437</a>)</li>
  <li><a href="7739b9ba2e"><code>7739b9b</code></a> Add option to fetch tags even if fetch-depth &gt; 0 (<a href="https://redirect.github.com/actions/checkout/issues/579">#579</a>)</li>
  <li><a href="96f53100ba"><code>96f5310</code></a> Mark test scripts with Bash'isms to be run via Bash (<a href="https://redirect.github.com/actions/checkout/issues/1377">#1377</a>)</li>
  <li><a href="c85c95e3d7"><code>c85c95e</code></a> Release v3.5.3 (<a href="https://redirect.github.com/actions/checkout/issues/1376">#1376</a>)</li>
  <li><a href="d106d4669b"><code>d106d46</code></a> Add support for sparse checkouts (<a href="https://redirect.github.com/actions/checkout/issues/1369">#1369</a>)</li>
  <li><a href="f095bcc56b"><code>f095bcc</code></a> Fix typos found by codespell (<a href="https://redirect.github.com/actions/checkout/issues/1287">#1287</a>)</li>
  <li><a href="47fbe2df0a"><code>47fbe2d</code></a> Fix: Checkout fail in self-hosted runners when faulty submodule are checked-i...</li>
  <li>Additional commits viewable in <a href="https://github.com/actions/checkout/compare/v2...v4">compare view</a></li>
  </ul>
  </details>
  <br />

  [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/checkout&package-manager=github_actions&previous-version=2&new-version=4)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

  Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

  [//]: # (dependabot-automerge-start)
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  <details>
  <summary>Dependabot commands and options</summary>
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  You can trigger Dependabot actions by commenting on this PR:
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ACKs for top commit:
  tcharding:
    ACK ddcf705f6a

Tree-SHA512: 2b02302db934b9682440bedf8d6f8d272cd4d0504c453150cdec219264c2544dcd10c1067ff28958b637d85585edad5c2efe66eca00d22c9df931119138ee231

.github/workflows/fuzz.yml

@@ -38,7 +38,7 @@ hashes_sha1,
     steps:
       - name: Install test dependencies
         run: sudo apt-get update -y && sudo apt-get install -y binutils-dev libunwind8-dev libcurl4-openssl-dev libelf-dev libdw-dev cmake gcc libiberty-dev
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/cache@v3
         id: cache-fuzz
         with:
@@ -70,7 +70,7 @@ hashes_sha1,
     needs: fuzz
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions/download-artifact@v3
       - name: Display structure of downloaded files
         run: ls -R

.github/workflows/kani.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: 'Checkout your code.'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Run Kani on your code.'
         uses: model-checking/kani-github-action@v0.36

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@stable
       - name: run cargo

.github/workflows/rust.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         # https://github.com/dtolnay/rust-toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -37,7 +37,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@beta
       - name: Running test script
@@ -53,7 +53,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@nightly
       - name: Running test script
@@ -72,7 +72,7 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@1.48.0
       - name: Running test script
@@ -86,7 +86,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@stable
       - name: Add architecture i386
@@ -104,7 +104,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@stable
       - name: Install target
@@ -121,7 +121,7 @@ jobs:
       CARGO_TARGET_THUMBV7M_NONE_EABI_RUNNER: "qemu-system-arm -cpu cortex-m3 -machine mps2-an385 -nographic -semihosting-config enable=on,target=native -kernel"
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up QEMU
         run: sudo apt update && sudo apt install -y qemu-system-arm gcc-arm-none-eabi
       - name: Checkout Toolchain
@@ -142,7 +142,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@nightly
       - name: Install src
@@ -157,7 +157,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Checkout Toolchain
         uses: dtolnay/rust-toolchain@stable
       - name: Running WASM build