Merge pull request #2538 from puppetlabs/update_mend

pdksync - update mend to work on cron

Author: rajat-puppet

.github/workflows/mend.yml

@@ -1,9 +1,10 @@
 name: "mend"
 
 on:
-  pull_request:
-    branches:
-      - "main"
+  pull_request_target:
+    types:
+      - opened
+      - synchronize
   schedule:
     - cron: "0 0 * * *"
   workflow_dispatch: