Update mend.yml

Author: rahuls2997

.github/workflows/mend.yml

@@ -11,5 +11,5 @@ on:
 jobs:
 
   mend:
-    uses: "puppetlabs/cat-github-actions/.github/workflows/mend_ruby.yml@main"
+    uses: "puppetlabs/cat-github-actions/.github/workflows/mend_ruby.yml@CAT-2117-skip-mend-for-PR-raised-from-forks"
     secrets: "inherit"