Push latest commits of libarchive.org to repo

Current https://libarchive.org/ has

> Stable release: [3.6.1](https://github.com/libarchive/libarchive/releases/tag/v3.6.1) (Apr 08, 2022)

and a typo `u1tilities`, neither of which are in this repo. Can we get latest so random strangers like me can help?