fix: possible crash in creatureevents (#2622)

Changes Proposed
- Fixed broken iteration.

Issues addressed:
- Crash because removing element from map and iterating.

Co-authored-by: Eduardo Dantas <eduardo.dantas@hotmail.com.br>

src/lua/creature/creatureevent.cpp

@@ -105,11 +105,9 @@ CreatureEvent::CreatureEvent(LuaScriptInterface* interface) :
 	Script(interface) { }
 
 void CreatureEvents::removeInvalidEvents() {
-	for (auto it = creatureEvents.begin(); it != creatureEvents.end(); ++it) {
-		if (it->second->getScriptId() == 0) {
-			creatureEvents.erase(it->second->getName());
-		}
-	}
+	std::erase_if(creatureEvents, [](const auto &pair) {
+		return pair.second->getScriptId() == 0;
+	});
 }
 
 std::string CreatureEvent::getScriptTypeName() const {