New review comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/pull/32636#discussion_r694157845

Comment:
Btw, if I remove it from makedepends, certain archs do fail with
```
Run-time dependency gi-docgen found: NO (tried pkgconfig and cmake)
Looking for a fallback subproject for the dependency gi-docgen
meson.build:556:2: ERROR: Automatic wrap-based subproject downloading is disabled
```