umr: use nix-update-script

pkgs/development/misc/umr/default.nix

@@ -14,6 +14,8 @@
 , ncurses
 , SDL2
 , bash-completion
+
+, nix-update-script
 }:
 
 stdenv.mkDerivation rec {
@@ -50,6 +52,8 @@ stdenv.mkDerivation rec {
     rm -r $out/lib
   '';
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "A userspace debugging and diagnostic tool for AMD GPUs";
     homepage = "https://gitlab.freedesktop.org/tomstdenis/umr";