[http] Migrate to the latest pkg:http, require Dart 3.3

pkgs/http/CHANGELOG.md

@@ -4,6 +4,8 @@
 * Added the ability to fetch the URL of the response through `BaseResponseWithUrl`.
 * Add the ability to get headers as a `Map<String, List<String>` to
   `BaseResponse`.
+* Require Dart `^3.3`
+* Require `package:web` `^0.5.0`.
 
 ## 1.1.2
 

pkgs/http/lib/src/browser_client.dart

@@ -5,7 +5,7 @@
 import 'dart:async';
 import 'dart:js_interop';
 
-import 'package:web/helpers.dart';
+import 'package:web/web.dart';
 
 import 'base_client.dart';
 import 'base_request.dart';

pkgs/http/pubspec.yaml

@@ -4,13 +4,13 @@ description: A composable, multi-platform, Future-based API for HTTP requests.
 repository: https://github.com/dart-lang/http/tree/master/pkgs/http
 
 environment:
-  sdk: ^3.2.0
+  sdk: ^3.3.0
 
 dependencies:
   async: ^2.5.0
   http_parser: ^4.0.0
   meta: ^1.3.0
-  web: '>=0.3.0 <0.5.0'
+  web: ^0.5.0
 
 dev_dependencies:
   dart_flutter_team_lints: ^2.0.0

pkgs/http/test/html/utils.dart

@@ -2,7 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-import 'package:web/helpers.dart';
+import 'package:web/web.dart';
 
 export '../utils.dart';