please update to 1.21.4

[SomeoneUnknown1]

an update to 1.21.4 please

[PMaxx-Gaming]

It hasn't been updated for 2 years...

[classic-massok]

I created a fork bumping the version to 1.21.4! Feel free to take a look https://github.com/classic-massok/GuardVillagers

Would love to contribute changes to this repo.