Update for flutter 3.10.0 (#182)

Signed-off-by: Hidenori Matsubayashi <[email protected]>

lib/commands/test.dart

@@ -1,15 +1,12 @@
-// Copyright 2021 Sony Group Corporation. All rights reserved.
+// Copyright 2023 Sony Group Corporation. All rights reserved.
 // Copyright 2021 Samsung Electronics Co., Ltd. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// @dart = 2.8
-
 import 'package:flutter_tools/src/commands/test.dart';
 
 import '../elinux_plugins.dart';
 
 class ELinuxTestCommand extends TestCommand with ELinuxExtension {
-  ELinuxTestCommand({bool verboseHelp = false})
-      : super(verboseHelp: verboseHelp);
+  ELinuxTestCommand({super.verboseHelp});
 }