Ignore upcoming warnings webview_flutter_android (#5922)

* ignore upcoming warnings in webview_flutter_android

* update-release-info
diff --git a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
index ee1186a..8e715cc 100644
--- a/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
+++ b/packages/webview_flutter/webview_flutter_android/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.8.11
+
+* Ignores unnecessary import warnings in preparation for [upcoming Flutter changes](https://github.com/flutter/flutter/pull/104231).
+
 ## 2.8.10
 
 * Updates references to the obsolete master branch.
diff --git a/packages/webview_flutter/webview_flutter_android/example/integration_test/webview_flutter_test.dart b/packages/webview_flutter/webview_flutter_android/example/integration_test/webview_flutter_test.dart
index 383fe45..c5bf76d 100644
--- a/packages/webview_flutter/webview_flutter_android/example/integration_test/webview_flutter_test.dart
+++ b/packages/webview_flutter/webview_flutter_android/example/integration_test/webview_flutter_test.dart
@@ -9,6 +9,8 @@
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
+// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#104231)
+// ignore: unnecessary_import
 import 'dart:typed_data';
 
 import 'package:flutter/foundation.dart';
diff --git a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
index f858fb3..7fdcf4b 100644
--- a/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
+++ b/packages/webview_flutter/webview_flutter_android/lib/src/android_webview.dart
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#104231)
+// ignore: unnecessary_import
 import 'dart:typed_data';
 import 'dart:ui';
 
diff --git a/packages/webview_flutter/webview_flutter_android/pubspec.yaml b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
index 2a32a83..6195e43 100644
--- a/packages/webview_flutter/webview_flutter_android/pubspec.yaml
+++ b/packages/webview_flutter/webview_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@
 description: A Flutter plugin that provides a WebView widget on Android.
 repository: https://github.com/flutter/plugins/tree/main/packages/webview_flutter/webview_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 2.8.10
+version: 2.8.11
 
 environment:
   sdk: ">=2.14.0 <3.0.0"