fix(DB/gameobject): Unreachable Copper vein (#6274)

- copper vein with the guid 5149 is now moved on top of the cliff
- this ensures it is reachable by players again
- Closes https://github.com/azerothcore/azerothcore-wotlk/issues/6270
- Closes https://github.com/chromiecraft/chromiecraft/issues/807

data/sql/updates/pending_db_world/rev_1623196877899764500.sql

@@ -0,0 +1,6 @@
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1623196877899764500');
+
+-- Update unreachable copper vein
+UPDATE `gameobject`
+SET `position_x`=-9144, `position_y`=-2078, `position_z`=125, `orientation`=3.369
+WHERE `guid`=5149 AND `id`=1731;