Remove v1 embedding, bump version

[jt274]

• Fixes breaking change on Flutter 3.29.0
• Will close Does not build for Android with Flutter 3.29.0 #78

[KennyHuRadar]

Thank you for creating this PR, I'll take a harder look at this as soon as I have some more time.
To facilitate the quick merging of this PR, could you reference the breaking change and also justify backwards compatibility along with "safety" of this change?
Thanks!

[jt274]

This has been deprecated I believe since flutter 1.22. Here is some more relevant info:

https://docs.flutter.dev/release/breaking-changes/android-v1-embedding-create-deprecation
https://docs.google.com/document/d/1wKspwf6LQu6uo32uQ9NcukfiKhLL4ButV9cwpjeb8QI/edit?tab=t.0
flutter/flutter#160890

I see no other specific mention of this in the 3.29.0 release notes, but the release broke many plugins due to this same issue. I'm not able to spend any time verifying backwards compatibility or safety, but this fix has worked for me.

https://docs.flutter.dev/release/breaking-changes/plugin-api-migration

[Jonny1987]

Can this be reviewed @KennyHuRadar please? I can't increase my flutter version until this is fixed

[jt274]

@Jonny1987 You can feel free to use my fork here until this is merged: https://github.com/jt274/flutter-radar/tree/flutter-plugin-interface

[KennyHuRadar]

@Jonny1987 I did not forget about this, I'm a little caught up in a few other priorities right now but rest assured this is on my radar and I will get to this as soon as I can.
Thank you for your patience!

[KennyHuRadar]

Closing as https://github.com/radarlabs/flutter-radar/pull/82/files is merged into main