Migrates to built-in Kotlin

[OmarHasan1996]

Following plugins that apply Kotlin Gradle Plugin (KGP): freerasp

Future versions of Flutter will fail to build if your app uses plugins that apply KGP.

Here is a guide on filing an issue against a plugin: https://docs.flutter.dev/release/breaking-changes/migrate-to-built-in-kotlin/for-app-developers#report-incompatible-kotlin-gradle-plugin-usage-to-plugin-authors

[martinzigrai]

Hello @OmarHasan1996,

thanks for raising this! We have this prioritized and will address it in a future release.

Martin from Talsec team