Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/33209

Downloads Kotlin compiler JARs with Buck before starting docker build. This solution is slower than checking in JARs directly, but it allows to keep lighter size of the repo for people who want a complete checkout.

Changelog: [Internal] - Update CI build to download Kotlin jars for buck

Reviewed By: cortinico

Differential Revision: D34582932

fbshipit-source-id: 290398579ce2a4d57c7af318c66526689db6073c