[Core/Mechanics] Player, add support to gameobject to cast spell on player in Pv…

…p zone. Also fix quest 9422/9419

src/server/game/Entities/GameObject/GameObject.cpp

@@ -1785,6 +1785,9 @@ void GameObject::Use(Unit* user)
             ;//sLog->outDebug(LOG_FILTER_OUTDOORPVP, "WORLD: %u non-dbc spell was handled by OutdoorPvP", spellId);
         return;
     }
+    
+    if (Player* player = user->ToPlayer())
+        sOutdoorPvPMgr->HandleCustomSpell(player, spellId, this);
 
     if (spellCaster)
         spellCaster->CastSpell(user, spellInfo, triggered);