libshell exposes in the headers types that are part of GioUnix
(DesktopAppInfo), so we should make it an explicit dependency of the
introspection parser, or we may not be able to parse these types.
Related to: https://gitlab.gnome.org/GNOME/glib/-/issues/3744
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3846>
(cherry picked from commit
28ef3777d215307330688f44c40032fc3d3226d6)
'Clutter-@0@'.format(mutter_api_version),
'Meta-@0@'.format(mutter_api_version),
'Gcr-4',
+ 'GioUnix-2.0',
'PolkitAgent-1.0',
'GdkPixbuf-2.0'
]