s/REPLICATION CLIENT/BINLOG MONITOR

https://mariadb.com/kb/en/mariabackup-overview/
https://mariadb.com/docs/server/ref/mdb/privileges/BINLOG_MONITOR/

Legacy privilege REPLICATION CLIENT can be used as an alias for BINLOG MONITOR in ES10.5 but the capabilities are different. BINLOG MONITOR does not grant SHOW SLAVE STATUS, or SHOW REPLICA STATUS these are granted with REPLICA MONITOR.

roles/galera/tasks/cluster_nodes.yml

@@ -215,7 +215,7 @@
   mysql_user:
     name: "{{ mariadb_cluster_user }}"
     password: "{{ mariadb_cluster_password }}"
-    priv: "*.*:GRANT RELOAD,PROCESS,LOCK TABLES,REPLICATION CLIENT ON"
+    priv: "*.*:GRANT RELOAD,PROCESS,LOCK TABLES,BINLOG MONITOR ON"
     state: present
     login_user: root
     login_password: "{{ mariadb_root_password  }}"