Add contents permission since it seems that not specifying it defaults to (#311)

none for that scope.

Signed-off-by: rulex123 <[email protected]>

Author: rulex123

.github/workflows/scheduled.yml

@@ -14,6 +14,7 @@ jobs:
 
   call-update-protobuf:
     permissions:
+      contents: read
       pull-requests: write
     needs: call-compare-envoy-versions-workflow
     if: ${{ needs.call-compare-envoy-versions-workflow.outputs.target-version != 'noop' }}

.github/workflows/update-protobuf.yml

@@ -14,6 +14,7 @@ on:
 jobs:
   update-protobuf:
     permissions:
+      contents: read
       pull-requests: write
     runs-on: ubuntu-latest
     steps: