[polari/wip/ozinger: 7/18] Update .gitlab-ci.yml

[Florian Müllner <fmuellner src gnome org>]

commit 10951a7367a126e2971b053040864b21d44ce078
Author: DaeHyun Sung <sungdh86 gmail com>
Date:   Wed Mar 7 17:35:32 2018 +0000

    Update .gitlab-ci.yml

 .gitlab-ci.yml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5aee0bc..ee8b7ee 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,7 @@ stages:
  - build
 
 before_script:
+  - dnf clean packages
   - dnf install -y gcc meson redhat-rpm-config gettext itstool gtk3-devel
                    gjs-devel gobject-introspection-devel telepathy-glib-devel
                    libappstream-glib desktop-file-utils