Migrate off Bintray release distribution
As of now, KS is [using Bintray as primary distribution mechanism](https://bintray.com/kaitai-io/) for reference compiler — we publish Linux .deb packages, Windows .msi packages and universal .zip packages there. The only exception is that .jar builds of compiler which [go to Maven Central now](https://mvnrepository.com/artifact/io.kaitai/kaitai-struct-compiler).

However, it looks like [JFrog will close the service pretty soon](https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/): on 2021-02-28 Bintray will not accept any new packages, and on 2021-05-01 they will disappear completely.

Any ideas where shall we migrate our releases to?