[gssdp/wip/libsoup3] ci: Fix name of SDK

[Jens Georg <jensgeorg src gnome org>]

commit e70716064841a1e9251d6bf02f983e79e8338af0
Author: Jens Georg <mail jensge org>
Date:   Sat Aug 7 08:51:39 2021 +0200

    ci: Fix name of SDK

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 074521b..acf1e10 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ flatpak:
     - flatpak
   variables:
       MANIFEST_PATH: "build-aux/org.gnome.GSSDP.json"
-  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:nightly
+  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
   stage: build
   script:
     - flatpak-builder build-dir 
https://gitlab.gnome.org/GNOME/rygel/-/raw/master/build-aux/org.gnome.Rygel.json --stop-at=gssdp --user 
--disable-rofiles-fuse