fix(DB/Spell): Correct Demonic Pact ICD to 20 seconds (#25098)

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

data/sql/updates/pending_db_world/rev_fix_demonic_pact_icd.sql

@@ -0,0 +1,3 @@
+-- Fix Demonic Pact ICD: should be 20 seconds in 3.3.5, not 5 seconds
+-- Also ensure both ranks (53646, 54909) have consistent cooldown
+UPDATE `spell_proc` SET `Cooldown` = 20000 WHERE `SpellId` IN (53646, 54909);