CI: remove duplicate info message

It's already printed in aptly_publish_repo.

.github/workflows/packages.yml

@@ -212,7 +212,6 @@ jobs:
           aptly_delete_dir
 
           # Final part to make changes appear in web root.
-          echo "[$(date +%H:%M:%S)] Publishing repository changes..."
           if ! aptly_publish_repo; then
             exit 1
           fi