Update GiftMessageList.swift

Author: zjc19891106

Sources/ChatroomUIKit/Classes/UI/Components/Gift/Views/GiftMessageList.swift

@@ -29,7 +29,7 @@ import UIKit
 
 @objc open class GiftMessageList: UIView {
 
-    public var dataSource: GiftMessageListTransformAnimationDataSource?
+    public weak var dataSource: GiftMessageListTransformAnimationDataSource?
 
     public var gifts = [GiftEntityProtocol]() {
         didSet {