avoid doing link check on draft

.github/workflows/test-external-links.yml

@@ -1,11 +1,15 @@
 name: Testing External Links
 on:
   pull_request:
+    types: [synchronize, opened, reopened, ready_for_review]
+    # Synchronize, open and reopened are the default types for pull request
+    # We add ready_for_review to trigger the check for changelog and full tests when ready for review is clicked
   merge_group:
   workflow_call:
 
 jobs:
   build-and-test:
+    if: ${{ github.event.pull_request.draft == false }}
     name: Testing External Links
     runs-on: ubuntu-latest
     strategy: