fix(ci): add contents:read permission for upstream-notify

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Mlaz-code

.github/workflows/upstream-notify.yml

@@ -6,6 +6,7 @@ on:
 
 permissions:
   issues: write
+  contents: read
 
 jobs:
   create-review-issue: