ci: Add GitHub Actions workflow for Crowdin translation synchronization.

Author: dddevid

.github/workflows/crowdin-sync.yml

@@ -35,6 +35,7 @@ jobs:
           token: ${{ secrets.CROWDIN_API_TOKEN }}
 
       - name: Crowdin pull (download translations)
+        id: crowdin_pull
         uses: crowdin/github-action@v2
         with:
           upload_sources: false
@@ -51,3 +52,9 @@ jobs:
           token: ${{ secrets.CROWDIN_API_TOKEN }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Enable Pull Request Automerge
+        if: steps.crowdin_pull.outputs.pull_request_number != ''
+        run: gh pr merge "${{ steps.crowdin_pull.outputs.pull_request_number }}" --auto --merge
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}