Apply suggestion from @jeswr

Author: jeswr

.github/workflows/automerge.yml

@@ -10,7 +10,6 @@ jobs:
     permissions:
       contents: write
       pull-requests: write
-      repository-projects: write
     if: github.actor == 'dependabot[bot]'
     steps:
       - run: gh pr merge ${{ github.event.pull_request.html_url }} --auto --squash