[geary/wip/gitlab-ci] Fixup builds

[Michael Gratton <mjog src gnome org>]

commit 2f0c4f1cd660de18a44753e0458f7959aa4c2f66
Author: Michael James Gratton <mike vee net>
Date:   Mon Jun 11 11:10:31 2018 +1000

    Fixup builds

 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 39a4808a..157ed97f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -58,12 +58,12 @@ deb-package:
   image: ubuntu:rolling
   before_script:
     - apt-get update
-    - apt-get install -q -y --no-install-recommends $UBUNTU_DEPS
+    - apt-get install -q -y --no-install-recommends devscripts $UBUNTU_DEPS
   script:
     - dpkg-buildpackage -b -us -uc
 
 flatpack-package:
-  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:3.28
+  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
   stage: build
 
   variables: