MDEV-18180 : Galera test failure on galera.galera_concurrent_ctas

Test changes only.

mysql-test/suite/galera/disabled.def

@@ -23,7 +23,6 @@ galera_as_slave_replication_bundle : MDEV-15785 OPTION_GTID_BEGIN is set in Gtid
 galera_autoinc_sst_mariabackup : Known issue, may require porting MDEV-17458 from later versions
 galera_bf_abort_group_commit : MDEV-18282 Galera test failure on galera.galera_bf_abort_group_commit
 galera_binlog_stmt_autoinc : MDEV-19959 Galera test failure on galera_binlog_stmt_autoinc	
-galera_concurrent_ctas : MDEV-18180 Galera test failure on galera.galera_concurrent_ctas
 galera_encrypt_tmp_files : Get error failed to enable encryption of temporary files
 galera_ftwrl : MDEV-21525 galera.galera_ftwrl
 galera_gcache_recover_manytrx : MDEV-18834 Galera test failure

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

 --source include/galera_cluster.inc
---source include/have_innodb.inc
+--source include/big_test.inc
 
 --write_file $MYSQLTEST_VARDIR/tmp/galera_concurrent.sql
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.1);
 DROP table t1;
-CREATE table t1 as SELECT SLEEP(0);
-CREATE table t2 as SELECT SLEEP(0);
-CREATE table t3 as SELECT SLEEP(0);
-CREATE table t4 as SELECT SLEEP(0);
-CREATE table t5 as SELECT SLEEP(0);
-CREATE table t6 as SELECT SLEEP(0);
-CREATE table t7 as SELECT SLEEP(0);
-CREATE table t8 as SELECT SLEEP(0);
-CREATE table t9 as SELECT SLEEP(0);
+CREATE table t1 as SELECT SLEEP(0.2);
+CREATE table t2 as SELECT SLEEP(0.2);
+CREATE table t3 as SELECT SLEEP(0.2);
+CREATE table t4 as SELECT SLEEP(0.2);
+CREATE table t5 as SELECT SLEEP(0.2);
+CREATE table t6 as SELECT SLEEP(0.2);
+CREATE table t7 as SELECT SLEEP(0.2);
+CREATE table t8 as SELECT SLEEP(0.2);
+CREATE table t9 as SELECT SLEEP(0.2);
 DROP table t1;
 DROP table t2;
 DROP table t3;