python312Packages.torch: fix tests (#404474)

pkgs/development/python-modules/torch/tests/mk-runtime-check.nix

···
   feature,
   libraries,
   versionAttr,
-  pythonPackages,
 }:
 
-(cudaPackages.writeGpuTestPython.override { python3Packages = pythonPackages; })
+cudaPackages.writeGpuTestPython
   {
     inherit feature;
     inherit libraries;

pkgs/development/python-modules/torch/tests/mk-torch-compile-check.nix

···
   lib,
   libraries,
   name ? if feature == null then "torch-compile-cpu" else "torch-compile-${feature}",
-  pythonPackages,
   stdenv,
 }:
 let
   deviceStr = if feature == null then "" else '', device="cuda"'';
 in
-(cudaPackages.writeGpuTestPython.override { python3Packages = pythonPackages; })
+cudaPackages.writeGpuTestPython
   {
     inherit name feature libraries;
     makeWrapperArgs = [