fix(Scripts/Magtheridon): update scheduler before UpdateVictim check (#25379)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp

@@ -242,10 +242,11 @@ struct boss_magtheridon : public BossAI
 
     void UpdateAI(uint32 diff) override
     {
+        scheduler.Update(diff);
+
         if (!UpdateVictim())
             return;
 
-        scheduler.Update(diff);
         _interruptScheduler.Update(diff);
 
         if (_currentPhase != 1 && !_castingQuake)