DB Updates And Core: Updated allowed build to 9.1.5.41793

Port From (https://github.com/TrinityCore/TrinityCore/commit/f49ff55f537fdfe640364dfa00cdd83f9b3b31c7)

sql/create/drop_mysql_8.sql

@@ -0,0 +1,11 @@
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'trinity'@'localhost';
+
+DROP USER 'trinity'@'localhost';
+
+DROP DATABASE IF EXISTS `world`;
+
+DROP DATABASE IF EXISTS `characters`;
+
+DROP DATABASE IF EXISTS `auth`;
+
+DROP DATABASE IF EXISTS `hotfixes`;