Add system_service_suppress_flush to complement force_flush logic for backup to local

roles/sys-ctl-bkp-docker-2-loc/tasks/01_core.yml

@@ -21,6 +21,7 @@
     system_service_timer_enabled:       true
     system_service_force_linear_sync:   true
     system_service_force_flush:         "{{ MODE_BACKUP | bool }}"
+    system_service_suppress_flush:      "{{ not MODE_BACKUP | bool }}"
     system_service_on_calendar:         "{{ SYS_SCHEDULE_BACKUP_DOCKER_TO_LOCAL }}"
     system_service_tpl_exec_start_pre:  '/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(" ")  }} --ignore {{ SYS_SERVICE_BACKUP_DOCKER_2_LOC }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"'
     system_service_tpl_exec_start:      "/bin/sh -c '{{ BKP_DOCKER_2_LOC_EXEC }}'"