build(deps): bump flutter_lints and lints in /packages/serverpod_lints

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) and [lints](https://github.com/dart-lang/lints). These dependencies needed to be updated together.

Updates `flutter_lints` from 4.0.0 to 5.0.0
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/flutter_lints-v5.0.0/packages)

Updates `lints` from 4.0.0 to 5.0.0
- [Release notes](https://github.com/dart-lang/lints/releases)
- [Changelog](https://github.com/dart-lang/lints/blob/main/CHANGELOG.md)
- [Commits](dart-lang/lints@v4.0.0...v5.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

packages/serverpod_lints/pubspec.yaml

@@ -10,5 +10,5 @@ environment:
   sdk: '>=3.3.0 <4.0.0'
 
 dependencies:
-  flutter_lints: '>=3.0.0 <5.0.0'
-  lints: '>=3.0.0 <5.0.0'
+  flutter_lints: ">=3.0.0 <6.0.0"
+  lints: ">=3.0.0 <6.0.0"