Merge pull request #894 from puppetlabs/revert-891-update_labeller

Revert "(maint) Update labeller.yml to pull_request"

Author: david22swan

.github/workflows/labeller.yml

@@ -6,7 +6,7 @@ on:
       - opened
       - labeled
       - unlabeled
-  pull_request:
+  pull_request_target:
     types:
       - opened
       - labeled