added read-permission to deploy.yaml

Author: irnscvngr

.github/workflows/deploy.yml

@@ -1,7 +1,8 @@
 name: Deploy to Cloud Functions
 
 permissions:
-  id-token: write
+  id-token: write # This is required for requesting the JWT
+  contents: read  # This is required for actions/checkout
 
 on:
     workflow_dispatch:  # Manually trigger the workflow