New review comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/29744#discussion_r607010859

Comment:
https://github.com/miurahr/py7zr/blob/2b082f41bd83022a89cd35712840170f137dff0a/pyproject.toml#L2 suggests that you need to add the `python3-toml` dependency I mentioned to `hostmakedepends`.