sys-ctl: make service file generation deterministic and simplify ignore logic

- Added '| sort' to all service group lists and backup routine lists to ensure
  deterministic ordering and stable checksums across Ansible runs.
- Adjusted systemctl templates to use a single service variable
  ('SYS_SERVICE_BACKUP_RMT_2_LOC') instead of rejecting dynamic list entries,
  making the ignore logic simpler and more predictable.
- Fixed minor whitespace inconsistencies in Jinja templates to avoid
  unnecessary changes.

This change was made to prevent spurious 'changed' states in Ansible caused by
non-deterministic list order and to reduce complexity in service definitions.

See discussion: https://chatgpt.com/share/68a74c20-6300-800f-a44e-da43ae2f3dea

roles/sys-ctl-cln-disc-space/templates/systemctl.service.j2

@@ -4,5 +4,5 @@ OnFailure={{ SYS_SERVICE_ON_FAILURE_COMPOSE }}
 
 [Service]
 Type=oneshot
-ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ')  }} --ignore {{ SYS_SERVICE_GROUP_CLEANUP| join(' ') }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
+ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ')  }} --ignore {{ SYS_SERVICE_GROUP_CLEANUP | join(' ') }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
 ExecStart={{ system_service_script_exec }} {{ SIZE_PERCENT_CLEANUP_DISC_SPACE }}