New review comment by icp1994 on void-packages repository

https://github.com/void-linux/void-packages/pull/45246#discussion_r1273849043

Comment:
```suggestion
distfiles="${PYPI_SITE}/u/urlscan/urlscan-${version}.tar.gz"
```
This way, you can eliminate the `pre_build()` part below entirely. I made a [commit upstream](https://github.com/firecat53/urlscan/commit/4598452a09030165b2eaa238e1065bcb233b5437) so that the manpage is also included in the pypi tarball. This release is no-op otherwise.