Bump flutter_lints from 1.0.4 to 2.0.1

Bumps [flutter_lints](https://github.com/flutter/packages/tree/main/packages) from 1.0.4 to 2.0.1.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/flutter_lints-v2.0.1/packages)

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

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