_0xproto: add updateScript

pkgs/by-name/_0/_0xproto/package.nix

@@ -2,6 +2,7 @@
   lib,
   stdenvNoCC,
   fetchzip,
+  nix-update-script,
 }:
 stdenvNoCC.mkDerivation rec {
   pname = "0xproto";
@@ -23,6 +24,10 @@ stdenvNoCC.mkDerivation rec {
     runHook postInstall
   '';
 
+  passthru = {
+    updateScript = nix-update-script { };
+  };
+
   meta = {
     description = "Free and Open-source font for programming";
     homepage = "https://github.com/0xType/0xProto";