ci: auto tag

.github/workflows/autotag.yml

@@ -0,0 +1,22 @@
+name: Auto Tag
+on: [push]
+
+permissions:
+  contents: write
+
+jobs:
+  tag:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      # parse version from git log like `release: 0.0.35`
+      - name: Get version
+        id: version
+        run: |
+          echo VERSION=$(git log --pretty=oneline -1 | grep -oP 'release: \\K[0-9.]+') >> $GITHUB_ENV
+      # create & push tag
+      - name: Create & push tag
+        if: env.VERSION != ''
+        run: |
+          git tag v$VERSION
+          git push origin v$VERSION