CI: Adjust for new puppet_metadata release

Author: bastelfreak

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
         run: bundle exec rake rubocop
       - name: Setup Test Matrix
         id: get-outputs
-        run: bundle exec metadata2gha --pidfile-workaround false
+        run: bundle exec metadata2gha
 
   unit:
     needs: setup_matrix