Merge queue prep: admin merge repo-sync prs (#30816)

.github/workflows/repo-sync.yml

@@ -244,12 +244,13 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           number: ${{ steps.find-pull-request.outputs.number }}
 
-      - name: Enable GitHub auto-merge
+      - name: Admin merge the pull request
         if: ${{ steps.find-pull-request.outputs.number && steps.pr-files.outputs.count != '0' }}
         env:
           GITHUB_TOKEN: ${{ secrets.OCTOMERGER_PAT_WITH_REPO_AND_WORKFLOW_SCOPE }}
-          AUTOMERGE_PR_NUMBER: ${{ steps.find-pull-request.outputs.number }}
-        run: node .github/actions-scripts/enable-automerge.js
+          PR_NUMBER: ${{ steps.find-pull-request.outputs.number }}
+        run: |
+          gh pr merge $PR_NUMBER --admin --merge
 
       - name: Send Slack notification if workflow fails
         uses: someimportantcompany/github-actions-slack-message@f8d28715e7b8a4717047d23f48c39827cacad340