Update dependencies.

lib/generated_plugin_registrant.dart

@@ -2,14 +2,14 @@
 // Generated file. Do not edit.
 //
 
-// ignore: unused_import
-import 'dart:ui';
+// ignore_for_file: lines_longer_than_80_chars
 
 import 'package:shared_preferences_web/shared_preferences_web.dart';
 
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
 
-void registerPlugins(PluginRegistry registry) {
-  SharedPreferencesPlugin.registerWith(registry.registrarFor(SharedPreferencesPlugin));
-  registry.registerMessageHandler();
+// ignore: public_member_api_docs
+void registerPlugins(Registrar registrar) {
+  SharedPreferencesPlugin.registerWith(registrar);
+  registrar.registerMessageHandler();
 }

pubspec.yaml

@@ -22,11 +22,11 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
-  provider: ^3.1.0
+  cupertino_icons: 0.1.2
+  provider: ^5.0.0
   dio: 2.0.7
-  shared_preferences: ^0.5.6
-  rxdart: ^0.21.0
+  shared_preferences: 2.0.6
+  rxdart: 0.21.0
   dartin: ^0.1.5
 
 dev_dependencies: