Bump dart_style from 2.3.7 to 3.0.0

Bumps [dart_style](https://github.com/dart-lang/dart_style) from 2.3.7 to 3.0.0.
- [Release notes](https://github.com/dart-lang/dart_style/releases)
- [Changelog](https://github.com/dart-lang/dart_style/blob/main/CHANGELOG.md)
- [Commits](dart-lang/dart_style@v2.3.7...v3.0.0)

---
updated-dependencies:
- dependency-name: dart_style
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

pubspec.yaml

@@ -24,7 +24,7 @@ dependencies:
 
 dev_dependencies:
   async: ^2.11.0
-  dart_style: ^2.3.7
+  dart_style: ">=2.3.7 <4.0.0"
   lints: ^5.0.0
   matcher: ^0.12.15
   sass: ^1.80.4