Update conditions for build-deploy job

Refine conditions for build-deploy job in workflow.

Author: ntoulemonde

.github/workflows/dev.yaml

@@ -18,7 +18,12 @@ concurrency:
 
 jobs:
   build-deploy:
-    if: github.event.action != 'closed'  # If closing the PR, no publishing
+    # If :
+    # If closing the PR, no publishing
+    # If event is push to a branch (contains ...) and a PR from that branch is opened
+    if: |
+      github.event_name == 'pull_request' && github.event.action != 'closed' ||  
+      (github.event_name == 'push' && contains(github.ref, 'refs/heads/') && github.repository == github.event.pull_request.head.repo.full_name)
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository