New comment by not-chicken on void-packages repository

https://github.com/void-linux/void-packages/pull/24548#issuecomment-693121263

Comment:
> Maybe you run it in some equipped masterdir?

Indeed, I had a package installed there from some previous testing. My bad.

> If you look at any dependencies list (webpage, setup.py, requires.txt, script itself), pycairo is there.

Yes, but since it was implicitly pulled in via `python3-gobject`, it was left out. 
I haven't added it in recent push, let me know if there's any drawback in this approach.