New review comment by classabbyamp on void-packages repository

https://github.com/void-linux/void-packages/pull/38323#discussion_r931915040

Comment:
```suggestion
distfiles="https://github.com/gphoto/libgphoto2/releases/download/v${version}/libgphoto2-${version}.tar.bz2"
```
seems they moved to github a while back. seems the files have the same checksum, so should be easy to switch