checkout git branch in GitHub action

Author: zefir-git

.github/workflows/ci.yaml

@@ -44,6 +44,7 @@ jobs:
           git config --global user.signingkey "[email protected]"
           git config --global user.name "Cloudnode [bot]"
           git config --global user.email "[email protected]"
+          git checkout "${GITHUB_REF#refs/heads/}"
           git add "**/index.ts"
           git commit -S -m "chore: update indices"
           git push