js-beautify: add updateScript

pkgs/by-name/js/js-beautify/package.nix

@@ -3,6 +3,7 @@
   buildNpmPackage,
   fetchFromGitHub,
   nodejs,
+  nix-update-script,
 }:
 
 buildNpmPackage (finalAttrs: {
@@ -35,6 +36,8 @@ buildNpmPackage (finalAttrs: {
 
   npmDepsHash = "sha256-Tr8kYawvPBt+jC7SW8dnKJVWynQyOpKbRD8yd+qbvIs=";
 
+  passthru.updateScript = nix-update-script { };
+
   meta = {
     changelog = "https://github.com/beautifier/js-beautify/blob/v${finalAttrs.version}/CHANGELOG.md";
     description = "Beautifier for javascript";