dart format removes comma and changes formatting style

[mock1328]

E.g. having this enum:

enum SomeEnum {
  Val1,
  Val2,
  Val3,
}

Becomes this after running dart format some_enum.dart:

enum SomeEnum { Val1, Val2, Val3 }

I don't think this was the case before flutter 3.29.0 update

[dart-github-bot]

Summary: dart format removes trailing commas from enums after Flutter 3.29.0 update. This is a formatting change, potentially breaking existing code styles.

[julemand101]

This is new intended behavior with recently released Dart 3.7: https://github.com/dart-lang/sdk/blob/stable/CHANGELOG.md#dart-format