github: add release workflow

Author: DanglingPointer

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     name: Check formatting
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: dtolnay/rust-toolchain@stable
       with:
         components: rustfmt
@@ -24,7 +24,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: dtolnay/rust-toolchain@stable
       with:
         components: clippy
@@ -38,7 +38,7 @@ jobs:
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: dtolnay/rust-toolchain@stable
     - run: cargo build --release --all-targets --no-default-features
     - run: cargo build --release --all-targets --all-features
@@ -51,7 +51,7 @@ jobs:
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: dtolnay/rust-toolchain@stable
     - uses: taiki-e/install-action@v2
       with:
@@ -62,7 +62,7 @@ jobs:
     name: Run doc tests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: dtolnay/rust-toolchain@nightly
     - run: cargo test --doc
     - run: cargo doc --lib --no-deps --all-features --document-private-items

.github/workflows/release.yml

@@ -0,0 +1,39 @@
+name: Release
+
+permissions:
+  contents: write
+  pull-requests: write
+
+on:
+  push:
+    tags:
+    - 'v[0-9]+.[0-9]+.[0-9]+'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  publish-release:
+    name: Publish release to crates.io
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v5
+    - uses: dtolnay/rust-toolchain@stable
+    - name: Publish to crates.io
+      run: cargo publish --token ${{ secrets.CARGO_TOKEN }}
+
+  release-plz-pr:
+    name: Release-plz PR
+    runs-on: ubuntu-latest
+    needs: publish-release
+    steps:
+    - uses: actions/checkout@v5
+    - uses: dtolnay/rust-toolchain@stable
+    - name: Run release-plz
+      uses: release-plz/action@v0.5
+      with:
+        command: release-pr
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        # CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}