[gnome-control-center/wip/hadess/ci-own-image] ci: Use our own gnome-40 image for building

[Bastien Nocera <hadess src gnome org>]

commit 33a23806feaf24fd4a358b09d40c45c6eee82d77
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Jul 21 18:35:14 2021 +0200

    ci: Use our own gnome-40 image for building
    
    Rather than relying on the image generated by the main development
    branch, mark our own as "-gnome-40" so we can be the ones generating it.

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 4a2aeed1b..d43d6e042 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,12 +2,12 @@ include:
  - remote: 
'https://gitlab.freedesktop.org/freedesktop/ci-templates/-/raw/5888c7388134cbe4661600222fe9befb10441f6e/templates/fedora.yml'
 
 variables:
-  FDO_DISTRIBUTION_TAG: latest
+  FDO_DISTRIBUTION_TAG: '2021-21-07.1'
   FDO_DISTRIBUTION_VERSION: rawhide
   FDO_UPSTREAM_REPO: gnome/gnome-control-center
   # Expiry sets fdo.expires on the image
   FDO_EXPIRES_AFTER: 8w
-  FEDORA_IMAGE: "$CI_REGISTRY/$FDO_UPSTREAM_REPO/fedora/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG"
+  FEDORA_IMAGE: 
"$CI_REGISTRY/$FDO_UPSTREAM_REPO/fedora/$FDO_DISTRIBUTION_VERSION:$FDO_DISTRIBUTION_TAG-gnome-40"
   # NOTES:
   # - gobject-introspection-devel is needed for gsettings-desktop-schemas
   FEDORA_DEPENDENCIES: >