Quiet workflow on Repo Sync PRs (#16961)

Quiet workflow on Repo Sync PRs

Co-authored-by: Chiedo <chiedo@users.noreply.github.com>

Author: chiedo

.github/workflows/triage-unallowed-contributions.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   triage:
-    if: github.repository == 'github/docs' && github.event.pull_request.user.login != 'Octomerger'
+    if: github.repository == 'github/docs' && github.event.pull_request.pull_request.user.login != 'Octomerger'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f