[gnome-control-center/barthalion/gnome-runtime-images-quay] Update (or drop) the Docker image used by Flatpak job

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 1720d39c83a356c7beb9b130510bd08503a67c20
Author: Bartłomiej Piotrowski <b bpiotrowski pl>
Date:   Wed Jul 27 12:43:42 2022 +0200

    Update (or drop) the Docker image used by Flatpak job
    
    The gnome-runtime-images have been recently migrated to Quay. This is already reflected in the template.
    
    Please note this MR has been created semi-automatically. If it doesn't make sense, feel free to close it.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 492607fd0..e5a0fbbc8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -301,7 +301,7 @@ pages:
 ##
 flatpak:
   stage: manual
-  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:main
+  image: quay.io/gnome_infrastructure/gnome-runtime-images:gnome-master
   artifacts:
     name: package
     paths: