New comment by tranzystorek-io on void-packages repository

https://github.com/void-linux/void-packages/pull/38180#issuecomment-1192148443

Comment:
The upstream package seems to be set up incorrectly and we end up installing the test module, not sure how to best work around this

EDIT: adding the following `pre_build` fixes this:
```sh
pre_build() {
    rm test/__init__.py
}
```