fix registry file

ansible/roles/pre-configure/templates/registries.yaml

@@ -2,9 +2,9 @@
 mirrors:
   docker.io:
     endpoint:
-      - "{{ docker_mirror.endpoint }}"
+      - "https://{{ docker_mirror.endpoint }}"
 configs:
-  "{{ docker_mirror.endpoint | regex_replace('^http[s]?://', '')}}":
+  "{{ docker_mirror.endpoint }}":
     auth:
       username: "{{ docker_mirror.username }}"
       password: "{{ docker_mirror.password }}"