[gnome-initial-setup/wip/port-to-gtk4] fixup! CI: Rework CI to be Arch-based

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 7f83fbfe3bcfaac5752022c6b3d54b812d461ddc
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Mon Jul 25 15:00:22 2022 -0300

    fixup! CI: Rework CI to be Arch-based

 .gitlab-ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d85e8ee5..7efb6bc7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,7 +14,7 @@ stages:
     # to the release number/branch to ensure that
     # a new image will be created, tailored for the
     # stable branch.
-    FDO_DISTRIBUTION_TAG: '2022-07-25.6-main'
+    FDO_DISTRIBUTION_TAG: '2022-07-25.7-main'
 
 # See also https://gitlab.freedesktop.org/freedesktop/ci-templates
 build.container.arch@x86_64:
@@ -38,6 +38,7 @@ build.container.arch@x86_64:
       gnome-desktop-4
       gnome-online-accounts
       gsettings-desktop-schemas
+      gobject-introspection
       gtk4
       itstool
       json-glib