Webview dont load for Android with new flutter version

## System info

Issue occurs on: Android
Plugin version: 0.4.0
Flutter doctor output:

```
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.24.0, on macOS 13.6.1 22G313 darwin-x64, locale pt-BR)
[✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
[!] Xcode - develop for iOS and macOS (Xcode 15.0.1)
! CocoaPods 1.11.2 out of date (1.13.0 is recommended).
CocoaPods is a package manager for iOS or macOS platform code.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/to/platform-plugins
To update CocoaPods, see https://guides.cocoapods.org/using/getting-started.html#updating-cocoapods
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] VS Code (version 1.92.1)
[✓] Connected device (3 available)
[✓] Network resources
```

## Steps to Reproduce

I upgraded Flutter to the latest stable version (Flutter 3.24.0 • channel stable).
Then created a new default flutter project and installed the plugin.

When I click to open the webview (any of them) I get the error:

E/flutter (15045): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: MissingPluginException(No implementation found for method launch on channel flutter_webview_plugin)
E/flutter (15045): #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:332:7)
E/flutter (15045):
E/flutter (15045): #1 FlutterWebviewPlugin.launch (package:flutter_webview_plugin/src/base.dart:217:5)
E/flutter (15045):
E/flutter (15045):

It works fine with IOS.
commands like 'flutter clean run' or deleting pubspec.lock didn't work.

## Logs

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Reproduisez l’échec dans un nouveau projet Flutter avec Flutter 3.24.0 et le plugin Android. Commencez par FlutterWebviewPlugin.launch dans flutter_webview_plugin/src/base.dart:217 et suivez le canal de méthodes flutter_webview_plugin jusqu’à l’implémentation Android. C’est terminé lorsqu’une webview quelconque peut être lancée sur Android sans MissingPluginException.

Rédigé par le modèle d'indexation à partir du texte de l'issue.