Avoid using `kapt` in `kmath-jupyter`

[CommanderTvis]

This is necessary because there are problems with running kapt on JDK 16.

[altavir]

The jupyter plugin uses kapt, so this issue must be addressed there

[CommanderTvis]

The jupyter plugin uses kapt, so this issue must be addressed there

https://github.com/Kotlin/kotlin-jupyter/blob/master/docs/libraries.md#avoiding-using-annotation-processor