quotes for safety

action.yml

@@ -14,7 +14,7 @@ inputs:
   handle:
     description: 'When using the default ${{ github.token }}, the "handle" is fetched from this input since the token is repository scoped and it cannot even read its own handle. You should not need to change this input.'
     required: true
-    default: github-actions[bot]
+    default: 'github-actions[bot]'
   path:
     description: 'Path where the privileged requester configuration can be found'
     required: true