add changed_when true when the metadata is updated

Author: bedroge

roles/cvmfs_server_meta_info/tasks/repo_meta_info.yml

@@ -25,6 +25,7 @@
 - name: Update the repository's meta information
   ansible.builtin.command:
     cmd: "cvmfs_server update-repoinfo -f {{ tmp_json_file.path }} {{ this_cvmfs_repo.repository }}"
+    changed_when: true
   when: (current_repo_meta.stdout | checksum) != json_file_stat.stat.checksum
   become_user: "{{ cvmfs_repo_owner | default('root') }}"