[lightsoff] ci: add nightly build

[Jordan Petridis <jpetridis src gnome org>]

commit 54a748adfc12c6e16acf85f168f8367f9d305470
Author: Jordan Petridis <jpetridis gnome org>
Date:   Sun Aug 2 14:52:05 2020 +0000

    ci: add nightly build

 .gitlab-ci.yml | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index dc5914d..07e0905 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,3 +11,9 @@ flatpak:
         RUNTIME_REPO: "https://sdk.gnome.org/gnome-nightly.flatpakrepo";
         APP_ID: "org.gnome.LightsOff"
     extends: .flatpak
+
+nightly:
+    extends: '.publish_nightly'
+    # assuming your job in named 'flatpak'
+    dependencies: ['flatpak']
+    needs: ['flatpak']