fix(Core/RuinsOfAhnQiraj): Kurinnaxx thrash (#12680)

fix(Core/RuinsOfAhnQiraj): Kurinaxx thrash

data/sql/updates/pending_db_world/rev_1659982493488417100.sql

@@ -0,0 +1,2 @@
+--
+DELETE FROM `creature_addon` WHERE `guid`=144632;

src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_kurinnaxx.cpp

@@ -28,14 +28,16 @@ enum Spells
     SPELL_SAND_TRAP         = 25648,
     SPELL_ENRAGE            = 26527,
     SPELL_SUMMON_PLAYER     = 26446,
-    SPELL_WIDE_SLASH        = 25814
+    SPELL_WIDE_SLASH        = 25814,
+    SPELL_THRASH            = 3391
 };
 
 enum Events
 {
     EVENT_MORTAL_WOUND      = 1,
     EVENT_SAND_TRAP         = 2,
-    EVENT_WIDE_SLASH        = 3
+    EVENT_WIDE_SLASH        = 3,
+    EVENT_THRASH            = 4
 };
 
 enum Texts
@@ -60,6 +62,7 @@ struct boss_kurinnaxx : public BossAI
         events.ScheduleEvent(EVENT_MORTAL_WOUND, 8s, 10s);
         events.ScheduleEvent(EVENT_SAND_TRAP, 5s, 15s);
         events.ScheduleEvent(EVENT_WIDE_SLASH, 10s, 15s);
+        events.ScheduleEvent(EVENT_THRASH, 16s);
     }
 
     void DamageTaken(Unit*, uint32& /*damage*/, DamageEffectType, SpellSchoolMask) override
@@ -114,6 +117,10 @@ struct boss_kurinnaxx : public BossAI
                     DoCastSelf(SPELL_WIDE_SLASH);
                     events.ScheduleEvent(EVENT_WIDE_SLASH, 12s, 15s);
                     break;
+                case EVENT_THRASH:
+                    DoCastSelf(SPELL_THRASH);
+                    events.ScheduleEvent(EVENT_THRASH, 16s);
+                    break;
                 default:
                     break;
             }