1.21.3 For 1.21.3

Fixes a small bug, and increase the version of Kore making it aligned with Minecraft again, lul

Changelog

• fix(chat-components): Fix chat components serialization in escaped JSON contexts. #123 0577198
• refactor(advancements): Do not serialize empty conditions of triggers. decf34c

Full changelog: https://github.com/Ayfri/Kore/compare/v1.21.2-1.21.3..v1.21.3-1.21.3