Merge pull request swiftlang#998 from ahoppen/auto-merge-permissions

Grant write permissions for content an pull requests to auto merge GitHub action

Author: ahoppen

.github/workflows/automerge.yml

@@ -11,4 +11,7 @@ jobs:
     uses: swiftlang/github-workflows/.github/workflows/create_automerge_pr.yml@main
     with:
       base_branch: release/6.2
+    permissions:
+      contents: write
+      pull-requests: write
     if: (github.event_name == 'schedule' && github.repository == 'swiftlang/swift-format') || (github.event_name != 'schedule')  # Ensure that we don't run this on a schedule in a fork