Use wrench resource for quest instead of item name 'Wrench'

quests/builder_missing_tool_quest.gd

@@ -37,9 +37,9 @@ func _process(_delta):
 	if is_completed:
 		return
 	
-	for item in _player.inventory.get_items():
-		if item.name == "Wrench":
-			is_wrench_found = true
+	var wrench_item:Item = load("res://data/items/wrench.tres")
+	if _player.inventory.has_all([wrench_item]):
+		is_wrench_found = true
 	
 	if is_bridge_built:
 		is_completed = true