[gnome-contacts] Gitlab CI: run ninja tests

[Niels De Graef <nielsdg src gnome org>]

commit 4ebb188c1f721fe6550529a48249c4e34139b695
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Tue Dec 11 11:56:32 2018 +0100

    Gitlab CI: run ninja tests

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0bba17f..db3aeb2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,6 +10,7 @@ flatpak:master:
     # Make sure to keep this in sync with the Flatpak manifest, all arguments
     # are passed except the config-args because we build it ourselves
     - flatpak build app meson --prefix=/app _build
+    - flatpak build app ninja -C _build test
     - flatpak build app ninja -C _build install
     - flatpak-builder --finish-only --repo=repo app data/flatpak/org.gnome.Contacts.json
     # Make a Flatpak Contacts bundle for people to test