[F] nixos: Fix unexpected argument

default.nix

@@ -1,8 +1,5 @@
 with import <nixpkgs> {};
 
 callPackage ./nixos/hyfetch.nix {
-    buildPythonPackage = python38Packages.buildPythonPackage;
-    fetchPypi = python38.pkgs.fetchPypi;
-    typing-extensions = python38.pkgs.typing-extensions;
-    setuptools = python38.pkgs.setuptools;
+    python3Packages = python38Packages;
 }