Removed redundancies and simplified run_once flag

roles/sys-ctl-mtn-cert-deploy/tasks/01_core.yml

@@ -1,8 +1,6 @@
 - name: Include dependency 'sys-ctl-alm-compose'
   include_role:
     name: sys-ctl-alm-compose
-  vars:
-    flush_handlers: true
   when: run_once_sys_ctl_alm_compose is not defined
 
 - name: "Ensure cert deploy target directory exists"
@@ -16,9 +14,9 @@
   vars:
     system_service_state:             restarted
     system_service_on_calendar:       "{{ SYS_SCHEDULE_MAINTANANCE_LETSENCRYPT_DEPLOY }}"
-    persistent:                       "true"
     system_service_timer_enabled:     true
     system_service_tpl_on_failure:    "{{ SYS_SERVICE_ON_FAILURE_COMPOSE }}"
     system_service_force_linear_sync: false
+    system_service_timer_persistent:       true
 
 - include_tasks: utils/once/flag.yml