cudaPackages_12_2.cuda-samples: init at 12.2

pkgs/test/cuda/cuda-samples/extension.nix

···
     "11.8" = "sha256-7+1P8+wqTKUGbCUBXGMDO9PkxYr2+PLDx9W2hXtXbuc=";
     "12.0" = "sha256-Lj2kbdVFrJo5xPYPMiE4BS7Z8gpU5JLKXVJhZABUe/g=";
     "12.1" = "sha256-xE0luOMq46zVsIEWwK4xjLs7NorcTIi9gbfZPVjIlqo=";
+    "12.2" = "sha256-pOy0qfDjA/Nr0T9PNKKefK/63gQnJV2MQsN2g3S2yng=";
   }.${prev.cudaVersion};
 
 in {