move on with the migration

packages/stream_chat/test/src/models/message_test.dart

@@ -1,10 +1,10 @@
 import 'dart:convert';
 
-import 'package:test/test.dart';
 import 'package:stream_chat/src/models/attachment.dart';
 import 'package:stream_chat/src/models/message.dart';
 import 'package:stream_chat/src/models/reaction.dart';
 import 'package:stream_chat/src/models/user.dart';
+import 'package:test/test.dart';
 
 void main() {
   group('src/models/message', () {
@@ -134,7 +134,7 @@ void main() {
             "id": "4637f7e4-a06b-42db-ba5a-8d8270dd926f",
             "text": "https://giphy.com/gifs/the-lion-king-live-action-5zvN79uTGfLMOVfQaA",
             "silent": false,
-            "skip_push": null,
+            "skip_push": false,
             "attachments": [
               {
                 "type": "video",
@@ -145,10 +145,11 @@ void main() {
                 "og_scrape_url": "https://giphy.com/gifs/the-lion-king-live-action-5zvN79uTGfLMOVfQaA",
                 "image_url": "https://media.giphy.com/media/5zvN79uTGfLMOVfQaA/giphy.gif",
                 "author_name": "GIPHY",
-                "asset_url": "https://media.giphy.com/media/5zvN79uTGfLMOVfQaA/giphy.mp4"
+                "asset_url": "https://media.giphy.com/media/5zvN79uTGfLMOVfQaA/giphy.mp4",
+                "actions": []
               }
             ],
-            "mentioned_users": null,
+            "mentioned_users": [],
             "parent_id": "parentId",
             "quoted_message": null,
             "quoted_message_id": null,