envision-unwrapped: fix update script

{

  lib,

  stdenv,

  fetchFromGitLab,

  writeScript,

  appstream-glib,

  cargo,

  meson,

  ninja,

  pkg-config,

  rustPlatform,

  rustc,

  wrapGAppsHook4,

  cairo,

  cargo,

  desktop-file-utils,

  fetchFromGitLab,

  gdb,

  gdk-pixbuf,

  glib,

  gtk4,

  gtksourceview5,

  lib,

  libadwaita,

  libgit2,

  libusb1,

  meson,

  ninja,

  nix-update-script,

  openssl,

  pango,

  pkg-config,

  rustPlatform,

  rustc,

  stdenv,

  vte-gtk4,

  wrapGAppsHook4,

  zlib,

  unstableGitUpdater,

}:

stdenv.mkDerivation (finalAttrs: {

      --prefix PATH : "${lib.makeBinPath [ gdb ]}"

  '';

  passthru.updateScript = writeScript "envision-update" ''

    source ${builtins.head (unstableGitUpdater { })}

    cp $tmpdir/Cargo.lock ./pkgs/by-name/en/envision-unwrapped/Cargo.lock

  '';

  passthru.updateScript = nix-update-script { extraArgs = [ "--version=branch=main" ]; };

  meta = {

    description = "UI for building, configuring and running Monado, the open source OpenXR runtime";