ci: add permissions to pr-patch-check-event (#104635)

.github/workflows/pr-patch-check-event.yml

@@ -17,6 +17,9 @@ on:
 # target branch onto the source branch, to verify compatibility before merging.
 jobs:
   dispatch-job:
+    permissions:
+      contents: read
+      actions: write
     env:
       HEAD_REF: ${{ github.head_ref }}
       BASE_REF: ${{ github.base_ref }}