[epiphany/alatiera/flatpak-dep] CI: add explicit dependency for the publish nightly job

[Jordan Petridis <jpetridis src gnome org>]

commit 0a3650d3efcf40abeccb45999528f2b2d9d549f2
Author: Jordan Petridis <jpetridis gnome org>
Date:   Wed Feb 19 16:07:29 2020 +0000

    CI: add explicit dependency for the publish nightly job

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9c9985153..93a0136ba 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -57,3 +57,4 @@ flatpak-scanbuild:
 
 nightly:
   extends: '.publish_nightly'
+  dependencies: ['flatpak-master']