songrec: add nix-update-script

pkgs/by-name/so/songrec/package.nix

@@ -13,6 +13,7 @@
   glib,
   libpulseaudio,
   versionCheckHook,
+  nix-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -56,6 +57,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
   doInstallCheck = true;
   nativeInstallCheckInputs = [ versionCheckHook ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     description = "Open-source Shazam client for Linux, written in Rust";
     homepage = "https://github.com/marin-m/SongRec";