libgnt/libgnt

Move to using a gi-docgen release rather than git

14 months ago, Gary Kramlich
c037bea489ec
Move to using a gi-docgen release rather than git

Testing Done:
purged the subprojects directory and successfully built withe docs.

Reviewed at https://reviews.imfreedom.org/r/2259/
[wrap-file]
directory = gi-docgen-2023.1
source_url = https://download.gnome.org/sources/gi-docgen/2023/gi-docgen-2023.1.tar.xz
source_filename = gi-docgen-2023.1.tar.xz
source_hash = a9a687c1b7c4a4139a214bd451e01ca86131a3161f68aa3e07325b06002bbfb6