fix galera tests for 11.4

Author: vuvova

mysql-test/suite/galera/t/galera_as_slave_ctas.test

@@ -16,7 +16,7 @@ SELECT @@wsrep_on;
 
 --connection node_1
 --disable_query_log
---eval CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_USER='root', MASTER_PORT=$NODE_MYPORT_3;
+--eval CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_USER='root', MASTER_PORT=$NODE_MYPORT_3, master_ssl_verify_server_cert=0;
 --enable_query_log
 START SLAVE;