Generating javadoc for the project does not work anymore on master

[DevHugo]

Executing the command ./gradlew :showkase:javaDocReleaseGeneration generate a gradle error :

> Task :showkase:compileReleaseKotlin
w: Argument -Xopt-in is deprecated. Please use -opt-in instead
WARN: Could not read file: /Showkase/showkase-annotation/build/libs/showkase-annotation.jar!/com/airbnb/android/showkase/annotation/ScreenshotConfig.class; size in bytes: 1100; file type: CLASS
java.lang.UnsupportedOperationException: PermittedSubclasses requires ASM9
        at org.jetbrains.org.objectweb.asm.ClassVisitor.visitPermittedSubclass(ClassVisitor.java:266)
        at org.jetbrains.org.objectweb.asm.ClassReader.accept(ClassReader.java:684)
        [...]

> Task :showkase:javaDocReleaseGeneration FAILED
Initializing plugins
Dokka is performing: documentation for :showkase
Validity check
Creating documentation models

FAILURE: Build failed with an exception.

In 1.0.5 tag, the command pass correctly but not on master (commit b722d73)

This tasks executed when publishing the dependency on a maven repository and could be a blocker for the next release of the libs.

Changing the sealed interface ScreenshotConfig to a simple interface ScreenshotConfig and changing the file WriterUtils file by adding an else in the when, make it work. Not a cool solution.