Run `format` and `fix` on CI and commit directly

[marandaneto]

Description

Similar to https://github.com/getsentry/sentry-cocoa/blob/main/.github/workflows/format-code.yml

It should do for all the packages that run the analyzers.

[ueman]

You could additionally run dart fix --apply. That would also fix smaller issues, which can be automatically fixed. See https://dart.dev/tools/dart-fix. The list at https://dart-lang.github.io/linter/lints/ also lists which lints have an auto-fix available.

[marandaneto]

You could additionally run dart fix --apply. That would also fix smaller issues, which can be automatically fixed. See dart.dev/tools/dart-fix. The list at dart-lang.github.io/linter/lints also lists which lints have an auto-fix available.

Good idea, so not only the formatting but also fixing small issues :)