[nautilus] ci: Set nightly runtime repository

[António Fernandes <antoniof src gnome org>]

commit 7834de2671356f7074940644c149b81bd655a3b1
Author: António Fernandes <antoniojpfernandes gmail com>
Date:   Sat Mar 6 18:24:33 2021 +0000

    ci: Set nightly runtime repository
    
    It was set to flathub because we used to depend on a stable runtime. [1]
    
    We have since changed to depend on the unstable runtime[2], but the
    Nightly flatpakref still configures the wrong repo on
    installation. If the user didn't have the gnome-nightly repository
    configured in advance, then the runtime cannot be found, failing the
    installation.[3]
    
    Update the repo URL, which I should have done in [2].
    
    [1] c4afd14696c670db8fbb64dcc4ea2f0807d25a94
    [2] d95a616116bb8c02b01261afa3ed5b581f9f2e74
    [3] 
https://blogs.gnome.org/antoniof/2021/03/05/files-40-beta-more-productivity-and-some-eye-candy/#comment-541

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1046dca63..c6eddf810 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ flatpak devel:
     variables:
         MANIFEST_PATH: "build-aux/flatpak/org.gnome.Nautilus.yml"
         FLATPAK_MODULE: "nautilus"
-        RUNTIME_REPO: "https://flathub.org/repo/flathub.flatpakrepo";
+        RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
         APP_ID: "org.gnome.NautilusDevel"
 
 nightly: