[gtk/ci-installed-tests: 4/5] ci: Use newer fedora image

[Matthias Clasen <matthiasc src gnome org>]

commit 64e23c4ec5b7a94db47fa181fe7f6ba9bb1a522c
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Aug 1 21:39:02 2020 -0400

    ci: Use newer fedora image
    
    v21 adds gnome-desktop-testing-runner.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b9fad8ede1..7140994690 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ variables:
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true -Dvulkan=yes"
   FEATURE_FLAGS: "-Dcloudproviders=true"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v20"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v21"
   FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
   DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v19"