Allow PR commenting from fork

Author: lassoan

.github/workflows/extension-validation.yml

@@ -123,7 +123,7 @@ jobs:
           body-includes: "<!-- extension-validation-report -->"
 
       - name: Comment PR with report
-        if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && always()
+        if: github.event_name == 'pull_request' && always()
         uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4.0.0
         with:
           comment-id: ${{ steps.fc.outputs.comment-id }}