Add systemd dependency

Author: bastelfreak

.fixtures.yml

@@ -26,5 +26,7 @@ fixtures:
       repo: "puppetlabs/augeas_core"
       puppet_version: ">= 6.0.0"
       ref: "1.0.4"
+  repositories:
+    systemd: 'https://github.com/voxpupuli/puppet-systemd'
   symlinks:
     powerdns: "#{source_dir}"