[tali] ci: add nightly build

[Jordan Petridis <jpetridis src gnome org>]

commit e71528fc78bb404f502b3bdadc538551b0aa5dbe
Author: Jordan Petridis <jpetridis gnome org>
Date:   Sun Aug 2 15:03:01 2020 +0000

    ci: add nightly build

 .gitlab-ci.yml | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ffed612..7c252dd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,3 +11,8 @@ flatpak:
         RUNTIME_REPO: "https://sdk.gnome.org/gnome-nightly.flatpakrepo";
         APP_ID: "org.gnome.Tali"
     extends: .flatpak
+
+nightly:
+    extends: '.publish_nightly'
+    dependencies: ['flatpak']
+    needs: ['flatpak']