www/gohugo: Update to 0.123.8

"This release is also a rewrite of the Hugo core, fixing lots of
long-lived bugs and adding some other exciting improvements (see below).
There are some breaking changes [1] that have been announced for a long
time." 1 - https://github.com/gohugoio/hugo/issues/11455

Changelog:
https://github.com/gohugoio/hugo/releases/tag/v0.123.0
...
https://github.com/gohugoio/hugo/releases/tag/v0.123.8

PR: 277732
Reviewed by: fernape