ci: add release pipeline

.gitea/workflows/release.yml

@@ -0,0 +1,38 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*"
+
+
+jobs:
+  changelog:
+    name: Generate changelog
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate changelog
+        uses: orhun/git-cliff-action@v4
+        with:
+          config: cliff.toml
+          args: --verbose
+        env:
+          OUTPUT: CHANGELOG.md
+          GITHUB_REPO: ${{ github.repository }}
+
+      - name: Commit
+        run: |
+          git checkout <branch>
+          git config user.name 'github-actions[bot]'
+          git config user.email 'github-actions[bot]@users.noreply.github.com'
+          set +e
+          git add CHANGELOG.md
+          git commit -m "Update changelog"
+          git push https://${{ secrets.GITHUB_TOKEN }}@github.com/${GITHUB_REPOSITORY}.git <branch>