build: add Gitea workflow for release automation

.gitea/workflows/release.yaml

@@ -0,0 +1,26 @@
+name: Release
+on:
+  push:
+
+env:
+  GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+
+permissions:
+  contents: read # for checkout
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # to be able to publish a GitHub release
+      issues: write # to be able to comment on released issues
+      pull-requests: write # to be able to comment on released pull requests
+      id-token: write # to enable use of OIDC for npm provenance
+    steps:
+      - name: Create Release
+        uses: https://git.kjan.de/actions/semantic-release@main
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+