[glade] ci: add explicit deps in the nightly job

[Jordan Petridis <jpetridis src gnome org>]

commit e19d37750284ff311d9fb1f53ae5dedbab46c901
Author: Jordan Petridis <jpetridis gnome org>
Date:   Sun Aug 2 14:36:52 2020 +0000

    ci: add explicit deps in the nightly job

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a695eb363..09bd66438 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -18,3 +18,5 @@ flatpak:
 
 nightly:
   extends: '.publish_nightly'
+  dependencies: ['flatpak']
+  needs: ['flatpak']