fix workflow does not contain permissions (via #3063)

Author: baev

.github/workflows/labeler.yml

@@ -3,6 +3,10 @@ name: "Set theme labels"
 on:
   - pull_request_target
 
+permissions:
+  contents: read
+  pull-requests: write
+
 jobs:
   triage:
     runs-on: ubuntu-latest