Bump serde_tokenstream from 0.1.5 to 0.1.6 (#281)

Bumps [serde_tokenstream](https://github.com/oxidecomputer/serde_tokenstream) from 0.1.5 to 0.1.6.
- [Release notes](https://github.com/oxidecomputer/serde_tokenstream/releases)
- [Commits](https://github.com/oxidecomputer/serde_tokenstream/compare/v0.1.5...v0.1.6)

---
updated-dependencies:
- dependency-name: serde_tokenstream
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.lock

@@ -1516,9 +1516,9 @@ dependencies = [
 
 [[package]]
 name = "serde_tokenstream"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2794f0ba0179a8ca422c30d9975d86faf8306be0164bfc3b0b1ca4f060ac639d"
+checksum = "274f512d6748a01e67cbcde5b4307ab2c9d52a98a2b870a980ef0793a351deff"
 dependencies = [
  "proc-macro2",
  "serde",

progenitor-macro/Cargo.toml

@@ -13,7 +13,7 @@ progenitor-impl = { version = "0.2.1-dev", path = "../progenitor-impl" }
 quote = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-serde_tokenstream = "0.1.4"
+serde_tokenstream = "0.1.6"
 syn = "1.0"
 
 [lib]