mate: add passthru update script

pkgs/desktops/mate/mate-notification-daemon/default.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, pkg-config, gettext, glib, libcanberra-gtk3,
-  libnotify, libwnck3, gtk3, libxml2, wrapGAppsHook }:
+  libnotify, libwnck3, gtk3, libxml2, wrapGAppsHook, mateUpdateScript }:
 
 stdenv.mkDerivation rec {
   pname = "mate-notification-daemon";
@@ -28,6 +28,8 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  passthru.updateScript = mateUpdateScript { inherit pname version; };
+
   meta = with lib; {
     description = "Notification daemon for MATE Desktop";
     homepage = "https://github.com/mate-desktop/mate-notification-daemon";