Update dependencies and improve test coverage

[Devalfaz]

• Updated Dart SDK version to >=3.9.0 and Flutter version to >=3.29.0 in pubspec.lock.
• Updated flutter_lints dependency to version ^6.0.0 in multiple pubspec.yaml files.
• Enhanced test cases in generator_tests to include onPopInvokedWithResult functionality in various output classes.
• Minor adjustments in generator code to ensure consistency and improve readability.

[M-Ahal]

So far seems to work with packages with the new analyzer like so:

  build_runner: ^2.9.0
  flutter_gen_runner: ^5.12.0
  hive_ce_generator: ^1.9.5
  injectable_generator: ^2.9.0

I can now finally upgrade these deps

[stact]

Working well, just some dependency overrides required on my side related to some other packages upgraded to latest version

dependency_overrides:
  _fe_analyzer_shared: "90.0.0"
  analyzer: "8.3.0"
  build: "4.0.2"
  characters: "1.4.1"
  package_info_plus: "9.0.0" // not related
  source_gen: "4.0.2"

[vasilich6107]

Working well, just some dependency overrides required on my side related to some other packages upgraded to latest version

dependency_overrides:

  _fe_analyzer_shared: "90.0.0"

  analyzer: "8.3.0"

  build: "4.0.2"

  characters: "1.4.1"

  package_info_plus: "9.0.0" // not related

  source_gen: "4.0.2"

Thanks
Will check

[PiotrWpl]

Hi @vasilich6107

any update on this one? Without these changes it's hard to keep the project up to date with the current Flutter version and different build runner related dependencies.

BTW, thank you for all of your hard work, because creating complex forms with your packages is much easier than in the vanilla Flutter.

[vasilich6107]

Hi @PiotrWpl
I've released update to build 3 several weeks ago
I'm going to re-release it as stable and check your pr