Matthias Clasen 39e9ef54be docs: Add initial support for using gi-docgen for docs
The files here are copied from the docs-gtk-org
branch of gtk.

This adds gi-docgen to the CI Dockerfiles and ensures the new versions
(including the OS upgrades from the previous commit) are used during CI.

Helps: #3037
2023-10-11 14:01:28 +01:00
..
2022-06-21 16:16:10 +01:00
2022-06-14 15:19:32 +01:00