[darwin] [request] update hugo static site generator

[khoan]

current version is 0.51 https://github.com/gohugoio/hugo/releases

thanks.

[jperkin]

This was updated in pkgsrc a few weeks ago (NetBSD@7057a40), however the macOS bulk builds are a little behind at the moment unfortunately. We have some new hardware coming online soon which should help.