[gtk/4.0-backports] ci: Use v27 of the fedora image

[Matthias Clasen <matthiasc src gnome org>]

commit 0f83e0095579376b31b7ee1b9ef308021c8d57c1
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jan 29 12:49:20 2021 -0500

    ci: Use v27 of the fedora image
    
    This one includes mesa-libGLES-devel, needed to make
    the gstreamer module build.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1f662c3a7f..00624776e5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -24,7 +24,7 @@ variables:
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
   FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v25"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v27"
   FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
   DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v25"