Version 1.6.3

The key user-visible change for this release is support for running WALA on JDK 21 and also processing JDK 21 bytecodes. Support for new recent bytecode features has not been tested thoroughly; please file issues if you find bugs. Internally, various build configuration improvements and updates were contributed by @liblit.

Full Changelog: v1.6.2...v1.6.3