fix the github build failed due to the empty user_info list

playbooks/roles/user/tasks/main.yml

@@ -121,7 +121,7 @@
 
 - fail:
     msg: "User {{ item.item.name }} didn't added ssh key to his account over github"
-  with_items: "{{ github_users_return.results }}"
+  with_items: "{{ github_users_return.results | default([]) }}"
   when: item.content_length == "0"
 
 - name: Get github key(s) and update the authorized_keys file