fix(github): do not skip scheduled labeler runs

Author: rubenhoenle

.github/workflows/labeler.yaml

@@ -14,7 +14,10 @@ jobs:
       pull-requests: write
       issues: write
     # don't run on PRs from forks (token has no write permissions)
-    if: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
+    if: >-
+      github.event_name == 'schedule' ||
+      github.event_name == 'workflow_dispatch' ||
+      (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)
     name: "Labeler"
     runs-on: ubuntu-latest
     steps: