Update before on the exec resource

Co-authored-by: Ewoud Kohl van Wijngaarden <ewoud@kohlvanwijngaarden.nl>

Author: sheenaajay

manifests/server/config.pp

@@ -265,6 +265,7 @@
       owner  => root,
       group  => root,
       path   => "/etc/systemd/system/${service_name}.service",
-    } -> Exec['restart-systemd'] -> Class['postgresql::server::service']
+      before => Exec['restart-systemd'],
+    }
   }
 }