Add Cargo Publish workflow

.github/workflows/cargo-publish.yml

@@ -0,0 +1,27 @@
+name: 📦 Cargo Publish
+on:
+  push:
+    branches-ignore: [wip/**]
+jobs:
+  test:
+    name: 📦 Cargo Publish
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Rust Cache
+        uses: Swatinem/rust-cache@v2
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with: { toolchain: stable }
+      - name: Package
+        run: cargo publish --dry-run
+      - name: Publish
+        run: |
+          v="v$(grep "^version" Cargo.toml | sed -r 's/version[^"]+"([^"]+).*/\1/')"
+          if [ "v" != "$GITHUB_OUTPUT" ]; then
+              printf "Cargo.toml version %s does not match tag %s" "$v" "$GITHUB_OUTPUT"
+              exit 2
+          fi
+          # cargo publish
+        if: startsWith( github.ref, 'refs/tags/v' )