This also fixes SKIKO-934 by making the dependency between
`merge*JniLibFolders` and `unzip*` tasks explicit (the patch actually
adds too much dependencies but this should be limited to android tasks).
After this patch the android sample works from my configuration (might
be worth checking if other issues are still relevant?).

Few things to consider for review:
- I've changed versions of Gradle / AGP / Kotlin until I got something
working on both samples and library side.
- If `ANDROID_SDK_ROOT` environment variable was specified on a CI
before, it should now be `ANDROID_HOME` to work with android gradle
plugin (internal utilities will work with both).
- I've introduce some lazyness in configurations (`matching { ... }`),
as android plugin and previous code would race (android seems to declare
it's configurations quite late). If there's a better way to express it,
please let me know!