[pygobject] (3 commits) Non-fast-forward update to branch ci-gnome-master

[Christoph Reiter <creiter src gnome org>]

The branch 'ci-gnome-master' 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:

  45312b7... wip

Commits added to the branch:

  ca03871... meson: declare_dependency for use by potential superproject (*)
  ea1587c... tests: extend the meson cext import hack to _gi_cairo. Fixe (*)
  0a39893... ci: build and run tests in the gnome master flatpak runtime

(*) This commit already existed in another branch; no separate mail sent