Bump flutter_lints from 5.0.0 to 6.0.0

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/flutter_lints-v6.0.0/packages)

---
updated-dependencies:
- dependency-name: flutter_lints
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pubspec.yaml

@@ -32,7 +32,7 @@ dependencies:
   waveform_recorder: ^1.3.0
 
 dev_dependencies:
-  flutter_lints: ^5.0.0
+  flutter_lints: ^6.0.0
   flutter_test:
     sdk: flutter