[nautilus] CI: Use master SDK

[Carlos Soriano <csoriano src gnome org>]

commit c8cdf67008a8c24a8ee9db3ee695b7460642bd67
Author: Carlos Soriano <csoriano1618 gmail com>
Date:   Thu Jan 17 15:33:37 2019 +0000

    CI: Use master SDK

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 430330021..eb50d7825 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -50,7 +50,7 @@ stages:
         expire_in: 2 days
 
 flatpak devel:
-    image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:3.30
+    image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
     stage: test
     variables:
         MANIFEST_PATH: "build-aux/flatpak/org.gnome.Nautilus.yml"