Environment * and client mixins in common crashes servers

[Linguardium]

https://github.com/Rongmario/CleanCut/blob/7b0f6b12804929c6e7dc3f536c2b785295c63d84/fabric/1.20/src/main/resources/fabric.mod.json#L17C21-L17C21

CleanCut/fabric/1.20/src/main/resources/cleancut.mixins.json

Line 8 in 7b0f6b1

"MinecraftClientMixin"

Yes, i know it is a clientside mod, but in previous versions the environment was properly set to prevent this. it seems the 1.20 port failed to properly bring this change along.