What's Changed

• Update gradle to 8.10 by @soywiz in https://github.com/korlibs/korge/pull/2292
• Try Java version 21 by @soywiz in https://github.com/korlibs/korge/pull/2293

Full Changelog: https://github.com/korlibs/korge/compare/v6.0.0-beta3...v6.0.0-beta4