fix(template): skip labeler for fork PRs (keep pull_request)

Author: mPokornyETM

.github/workflows/pr-labels.yml

@@ -7,6 +7,7 @@ on:
 jobs:
   label:
     runs-on: ubuntu-latest
+    if: "${{ github.event.pull_request.head.repo.full_name == github.repository }}"
     steps:
       - name: Check out
         uses: actions/checkout@v4