[libwnck] Non-fast-forward update to branch wip/marco/meson-build

[Marco Trevisan <marcotrevi src gnome org>]

The branch 'wip/marco/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:

  2bfaadd... .gitlab-ci: also build with meson

Commits added to the branch:

  d4bc036... g.gitlab-ci: also build with meson