Create sec.yml

Check for vulnerabilities on dependencies

.github/workflows/sec.yml

@@ -0,0 +1,17 @@
+on:
+  push:
+    paths: 
+      - '**/Cargo.toml'
+      - '**/Cargo.lock'
+
+name: Security Audit
+
+jobs:
+  security:
+    name: Security
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/audit-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}