New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/35117#discussion_r788246663

Comment:
```suggestion
homepage="https://github.com/flatpak/flatpak-builder"
changelog="https://raw.githubusercontent.com/flatpak/flatpak-builder/master/NEWS"
distfiles="https://github.com/flatpak/flatpak-builder/releases/download/${version}/flatpak-builder-${version}.tar.xz"
```