chore(deps): bump flutter_lints

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) from 2.0.3 to 3.0.1.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/pigeon-v3.0.1/packages)

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

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

packages/connectivity_plus/connectivity_plus/pubspec.yaml

@@ -42,7 +42,7 @@ dev_dependencies:
     sdk: flutter
   build_runner: ^2.3.3
   dbus: ^0.7.8
-  flutter_lints: ^2.0.2
+  flutter_lints: ">=2.0.2 <4.0.0"
   mockito: ^5.4.0
   plugin_platform_interface: ^2.1.5
   test: ^1.22.0