ViaFabric

Added initial support for Minecraft 1.21.4

Removed Minecraft 1.21.2/3 support;

If you are still using these versions, make sure to update both ViaVersion/ViaBackwards:

ViaVersion: https://modrinth.com/plugin/viaversion

ViaBackwards: https://modrinth.com/plugin/viabackwards

by putting them in the mods folder, to still be able to play on 1.21.4+ servers