fix tests

packages/stream_chat/lib/src/core/models/message.dart

@@ -414,8 +414,8 @@ class Message extends Equatable {
         shadowed,
         silent,
         command,
-        createdAt,
-        updatedAt,
+        _createdAt,
+        _updatedAt,
         deletedAt,
         user,
         pinned,

packages/stream_chat_flutter/lib/src/message_input/stream_message_text_field.dart

@@ -703,7 +703,6 @@ class _StreamMessageTextFieldState extends State<StreamMessageTextField>
 
   @override
   Widget build(BuildContext context) => TextField(
-        key: widget.key,
         controller: _effectiveController.textEditingController,
         onChanged: (newText) {
           _effectiveController.text = newText;

packages/stream_chat_flutter/test/src/attachment_actions_modal_test.dart

@@ -3,7 +3,6 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
-import 'package:stream_chat_flutter/src/attachment_actions_modal.dart';
 import 'package:stream_chat_flutter/stream_chat_flutter.dart';
 
 import 'mocks.dart';