Fix test for MariaDB which does not support delete with subquery with limit

like:

delete from bbookmark_user where id in (select t0.id from bbookmark_user t0 where t0.name = ? limit 10)

ebean-test/src/test/java/org/tests/delete/TestDeleteByQuery.java

@@ -20,7 +20,7 @@ public class TestDeleteByQuery extends BaseTestCase {
     DB.save(u1);
   }
 
-  @IgnorePlatform(Platform.MYSQL)
+  @IgnorePlatform({Platform.MYSQL, Platform.MARIADB})
   @Test
   void maxDelete_expect_singleDeleteStatement() {
     LoggedSql.start();