Add retries to image downloads

ansible/roles/metacluster/tasks/components.yml

@@ -45,6 +45,8 @@
   ansible.builtin.command:
     cmd: skopeo copy docker://{{ item }} docker-archive:./{{ ( item | regex_findall('[^/:]+'))[-2] }}.tar:{{ item }}
     chdir: /opt/metacluster/container-images
+  register: imagedownload
+  until: imagedownload is succeeded
   loop: "{{ containerimages.results | map(attribute='stdout_lines') | flatten + dependencies.container_images }}"
 
 - name: Compress tarballs