Improve quest Mythology of the Titans (#4439)

data/sql/updates/pending_db_world/rev_1612426003202074028.sql

@@ -0,0 +1,5 @@
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1612426003202074028');
+
+-- Lower respawn of Mythology of the Titans
+
+UPDATE `gameobject` SET `spawntimesecs`=2 WHERE `guid`=15008;