Describe the feature/addition!

add support for v7.0.8-alpha for Minecraft 1.21.1

Why would like to see this feature/addition?

https://github.com/Team-EnderIO/EnderIO/releases/tag/v7.0.8-alpha
Most bugs are fixed in this version of EIO!

Already in progress, it just needs some time because a ton of stuff changed.

Pushing a release now, should be available in a bit.