* Migration to Flutter 3.10
* Bump Flutter version on actions
* GitHub Actions: use channel instead of a fixed version of Flutter
* Add a missing argument due to the upgrade to Flutter 3.10
* Regenerate goldens
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Co-authored-by: monsieurtanuki <fabrice_fontaine@hotmail.com>
New files:
* `app_test.dart`: Onboarding screenshots.
* `screenshot_driver.dart`: Screenshot driver.
Impacted files:
* `analytics_helper.dart`: added a special case for screenshot init.
* `main.dart`: refactored for screenshots, and more specifically moved init code to be run before calling the app.
* `next_button.dart`: added a `Key` for test/screenshots
* `Podfile.lock`: wtf
* `pubspec.lock`: impacted by `pubspec.yaml`
* `pubspec.yaml`: added integration_test and flutter_driver to dev_dependencies; upgraded the version numbers.
