[gtk-doc] (3 commits) Non-fast-forward update to branch wip/smcv/dist-meson-build

[Simon McVittie <smcv src gnome org>]

The branch 'wip/smcv/dist-meson-build' 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:

  d56e9e1... build: Distribute more files from git in official release t
  c908d9e... CI: Exercise meson dist, and collect artifacts
  cfd0f06... CI: Check that Meson tests can pass from an Autotools dist 

Commits added to the branch:

  909fdb9... build: Distribute more files from git in official release t
  efdf440... CI: Exercise meson dist, and collect artifacts
  5ef1f13... CI: Check that Meson tests can pass from an Autotools dist