fix(DB/Spells): Scourgebane Infusion and Scourgebane Draught should stack (#25823)

data/sql/updates/pending_db_world/rev_1778701540887000000.sql

@@ -0,0 +1,7 @@
+--
+-- Scourgebane Infusion (item 22778 -> spell 28488) and Scourgebane Draught
+-- (item 22779 -> spell 28486) are not battle elixirs. Remove them from the
+-- Battle Elixir spell group(1) so they stack with each other and other
+-- flasks/elixirs.
+--
+DELETE FROM `spell_group` WHERE `id` = 1 AND `spell_id` IN (28486, 28488);