New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/41530#discussion_r1070536915

Comment:
Only the github tarball has tests
```suggestion
distfiles="distfiles="https://github.com/vxgmichel/aiostream/archive/refs/tags/v${version}.tar.gz"
checkdepends="python3-pytest python3-pytest-asyncio"
```
this will fail with --cov not being available in setup.cfg, but we don't really need coverage reports, so I would just disable them with patch/vsed.