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

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit c21e11686e264894e107161d5543c18afb2557cd
Author: Bartłomiej Piotrowski <b bpiotrowski pl>
Date:   Wed Jul 27 12:46:41 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 | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 449da20..1c64a16 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,6 @@ include:
     file: "flatpak/flatpak_ci_initiative.yml"
 
 flatpak:
-  image: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
   variables:
     MANIFEST_PATH: "org.gnome.SoundRecorder.json"
     BUNDLE: "sound-recorder-dev.flatpak"
@@ -25,4 +24,4 @@ eslint:
   artifacts:
     paths:
       - ${LINT_LOG}
-    when: on_failure
+    when: on_failure
\ No newline at end of file