ci: add release pipeline

.gitea/workflows/cd.yaml

@@ -0,0 +1,43 @@
+name: CI & Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "stable"
+
+      - name: Download dependencies
+        run: go mod download
+
+      - name: Run tests
+        run: go test ./...
+
+  release:
+    needs: tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+      - run: |
+          git config --global user.name "Gitea Actions"
+          git config --global user.email "gitea-actions@t00n.de"
+      - name: Release
+        run: |
+          npx standard-version --no-verify --skip-git --skip-changelog
+          git push --follow-tags origin HEAD