Update linting_tool (#1975)

This is to work around a CI failure on `master` channel.

Context:
https://github.com/flutter/samples/actions/runs/5709180900/job/15467660430#step:5:1244

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel
channel on [Discord].

<!-- Links -->
[Flutter Style Guide]:
https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
[CLA]: https://cla.developers.google.com/
[Discord]: https://github.com/flutter/flutter/wiki/Chat
[Contributors Guide]:
https://github.com/flutter/samples/blob/main/CONTRIBUTING.md

experimental/linting_tool/lib/theme/app_theme.dart

@@ -9,7 +9,7 @@ import 'package:linting_tool/theme/colors.dart';
 
 abstract class AppTheme {
   static ThemeData buildReplyLightTheme(BuildContext context) {
-    final base = ThemeData.light();
+    final base = ThemeData.light(useMaterial3: true);
     return base.copyWith(
       bottomSheetTheme: BottomSheetThemeData(
         backgroundColor: AppColors.blue700,
@@ -45,7 +45,6 @@ abstract class AppTheme {
       textTheme: _buildReplyLightTextTheme(base.textTheme),
       scaffoldBackgroundColor: AppColors.blue50,
       bottomAppBarTheme: const BottomAppBarTheme(color: AppColors.blue700),
-      useMaterial3: true,
     );
   }