Core: updated creature type flags enum (#17128)

Core/Misc: Update CreatureTypeFlags enum according to TrinityCoreWiki

src/server/game/AI/SmartScripts/SmartAI.cpp

@@ -468,7 +468,7 @@ bool SmartAI::AssistPlayerInCombat(Unit* who)
         return false;
 
     //experimental (unknown) flag not present
-    if (!(me->GetCreatureTemplate()->type_flags & CREATURE_TYPEFLAGS_AID_PLAYERS))
+    if (!(me->GetCreatureTemplate()->type_flags & CREATURE_TYPE_FLAG_CAN_ASSIST))
         return false;
 
     //not a player