Update dependency webview_flutter_android to v4

Author: renovate[bot]

packages/fwfh_webview/pubspec.yaml

@@ -14,7 +14,7 @@ dependencies:
   logging: ^1.0.0
   web: ">=0.3.0 <2.0.0"
   webview_flutter: ^4.0.1
-  webview_flutter_android: ^3.10.0
+  webview_flutter_android: ^4.0.0
   webview_flutter_wkwebview: ^3.6.0
 
 dependency_overrides: