Fix download retry when get_url has no status_code. (#10613)

* Fix download retry when get_url has no status_code.

* Fix until clause in download role.

roles/download/tasks/download_file.yml

@@ -103,7 +103,7 @@
     become: "{{ not download_localhost }}"
     until: "'OK' in get_url_result.msg or
       'file already exists' in get_url_result.msg or
-      get_url_result.status_code == 304"
+      get_url_result.status_code | default() == 304"
     retries: "{{ download_retries }}"
     delay: "{{ retry_stagger | default(5) }}"
     environment: "{{ proxy_env }}"