fix(DB/Spell): Add internal cooldown to Spirit Burn proc (#25129)

Co-authored-by: blinkysc <blinkysc@users.noreply.github.com>

data/sql/updates/pending_db_world/rev_1773945980134291128.sql

@@ -0,0 +1,3 @@
+-- Spirit Burn (54647) - Add 10s internal cooldown
+DELETE FROM `spell_proc` WHERE `SpellId` = 54647;
+INSERT INTO `spell_proc` (`SpellId`, `Cooldown`) VALUES (54647, 8000);