skip bottom_sheet (#34430)

packages/flutter/test/material/bottom_sheet_test.dart

diff --git a/packages/flutter/test/material/bottom_sheet_test.dart b/packages/flutter/test/material/bottom_sheet_test.dart
index 35ac31b..15cca8e 100644
--- a/packages/flutter/test/material/bottom_sheet_test.dart
+++ b/packages/flutter/test/material/bottom_sheet_test.dart
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+@TestOn('!chrome') // flaky on CI
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';