Bump lints from 2.1.1 to 3.0.0 in /dart

Bumps [lints](https://github.com/dart-lang/lints) from 2.1.1 to 3.0.0.
- [Release notes](https://github.com/dart-lang/lints/releases)
- [Changelog](https://github.com/dart-lang/lints/blob/main/CHANGELOG.md)
- [Commits](dart-archive/lints@v2.1.1...v3.0.0)

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

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

Author: dependabot[bot]

dart/pubspec.yaml

@@ -20,7 +20,7 @@ dependencies:
 dev_dependencies:
   build_runner: ^2.4.2
   mockito: ^5.1.0
-  lints: ^2.0.0
+  lints: ^3.0.0
   test: ^1.21.1
   yaml: ^3.1.0 # needed for version match (code and pubspec)
   collection: ^1.16.0