fix(backup): reorder backup functions to ensure lockfile creation occurs before initialisation

lgsm/modules/command_backup.sh

@@ -269,10 +269,10 @@ check.sh
 core_logs.sh
 fn_select_compression
 fn_backup_check_lockfile
+fn_backup_create_lockfile
 fn_backup_init
 fn_backup_stop_server
 fn_backup_dir
-fn_backup_create_lockfile
 fn_backup_compression
 fn_backup_prune
 fn_backup_start_server