fix ansible-lint offenses

Author: alexandermeindl

roles/backup/tasks/files.yml

@@ -18,7 +18,7 @@
       ansible.builtin.debug:
         var: rsync_result.stdout_lines
 
-- name: tar.gz mode active
+- name: Tar.gz mode active
   when: instance.type is undefined or instance.type == 'tar.gz'
   block:
     - name: Set fact backup_file_name with rotation