chore: Fix automerge action permissions

Author: mgagliardo91

.github/workflows/automerge.yaml

@@ -1,5 +1,9 @@
 name: Automerge
 
+permissions:
+  pull-requests: write
+  contents: write
+
 on:
   pull_request:
     types: [opened, synchronize, labeled, reopened]
@@ -15,4 +19,4 @@ jobs:
           gh pr review --approve "$PR_URL"
         env:
           PR_URL: ${{ github.event.pull_request.html_url }}
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}