wheel: enforce that translation being build for macos wheel
@mharbison: we need gettext available on the mac runner so that msgfmt is available.
This instance will be upgraded to Heptapod 18.5.1 on 2025-11-13 between 17:00 and 18:00 UTC+2
@mharbison: we need gettext available on the mac runner so that msgfmt is available.