Upgrade inapp_webview to solve Xcode build error

pubspec.lock

@@ -365,7 +365,7 @@ packages:
     description:
       path: "."
       ref: email_supported
-      resolved-ref: d8a9d89a872029082e6a7b90b1c916552682f0b8
+      resolved-ref: c6255895dfc9cefbb21e9d2c7bc12fb9f383bd4b
       url: "https://github.com/linagora/enough_html_editor.git"
     source: git
     version: "0.0.5"
@@ -508,7 +508,7 @@ packages:
       name: flutter_inappwebview
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.4.3+7"
+    version: "5.4.3+8"
   flutter_keyboard_visibility:
     dependency: transitive
     description: