[gnome-build-meta] Non-fast-forward update to branch mcatanzaro/gcr-gi-docgen

[Marge Bot <marge-bot src gnome org>]

The branch 'mcatanzaro/gcr-gi-docgen' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  cd5912f... sdk/gcr-3.bst: switch from gtk-doc to gi-docgen

Commits added to the branch:

  45a6789... sdk/gcr-3.bst: switch from gtk-doc to gi-docgen