fix(Core/MC): adds should aggro with Golemagg (#9370)

src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/instance_molten_core.cpp

@@ -263,6 +263,20 @@ public:
                         }
                         break;
                     }
+                    case IN_PROGRESS:
+                    {
+                        if (!_golemaggMinionsGUIDS.empty())
+                        {
+                            for (ObjectGuid const& minionGuid : _golemaggMinionsGUIDS)
+                            {
+                                if (Creature* minion = instance->GetCreature(minionGuid))
+                                {
+                                    minion->AI()->DoZoneInCombat(nullptr, 150.0f);
+                                }
+                            }
+                        }
+                        break;
+                    }
                     case DONE:
                     {
                         if (!_golemaggMinionsGUIDS.empty())
@@ -278,7 +292,6 @@ public:
                         }
                         break;
                     }
-                    case IN_PROGRESS:
                     default:
                         break;
                 }