fix: Adds permissions line to approve-merge (was missing). (#229)

Author: willum070

.github/workflows/approve-merge.yml

@@ -26,6 +26,9 @@ on:
 jobs:
   approve-and-merge:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
     if: github.event.pull_request.user.login == 'googlemaps-bot[bot]' && github.event.pull_request.head.ref == 'temp-build-branch' # change here
     steps:
       - name: Checkout code