leesongun

This PR updates pijul from 0.12.2 to 1.0.0-beta.2, preparing for 1.0.0. But since it seems there was non-[backward-compatible](https://pijul.org/posts/2021-06-28-two-changes/) [format change](https://pijul.org/posts/2021-01-05-how-to-survive/) since 0.12.2 and [1.0.0-beta guarantees format stability](https://pijul.org/posts/2022-01-08-beta/), this could be...