[nautilus/gnome-42] Update (or drop) the Docker image used by Flatpak job

[Ondrej Holy <oholy src gnome org>]

commit 33137dd574b2a60973dec24f74535ded0e1c7cc4
Author: Bartłomiej Piotrowski <b bpiotrowski pl>
Date:   Wed Jul 27 12:50:37 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 | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index aff5e8ab4..624342955 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,7 +11,6 @@ stages:
 
 flatpak:
     extends: '.flatpak'
-    image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
     variables:
         MANIFEST_PATH: "build-aux/flatpak/org.gnome.Nautilus.yml"
         FLATPAK_MODULE: "nautilus"