ci: use pr-target in condition (#33)

Author: andrinoff

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
   labeler:
     name: Label PR
     runs-on: ubuntu-latest
-    if: github.event_name == 'pull_request'
+    if: github.event_name == 'pull_request_target'
     permissions:
       contents: read
       pull-requests: write