retry to fetch binary if it fails first time (#7839)

roles/kubernetes/client/tasks/main.yml

@@ -106,6 +106,9 @@
     dest: "{{ artifacts_dir }}/kubectl"
     flat: yes
     validate_checksum: no
+  register: copy_binary_result
+  until: copy_binary_result is not failed
+  retries: 20
   become: no
   run_once: yes
   when: kubectl_localhost