DB/VP: corrected Altairus' movement template and spawn position data

sql/updates/world/4.3.4/2021_10_30_01_world.sql

@@ -0,0 +1,2 @@
+UPDATE `creature_template_movement` SET `Ground`= 2 WHERE `CreatureId` IN (43873, 43874);
+UPDATE `creature` SET `position_z`= 734.25745 - 10.125 WHERE `guid`= 368250;