Merge pull request #115173 from danieldk/pytorch-1.8.0

python3Packages.pytorch: 1.7.1 -> 1.8.0

pkgs/development/python-modules/pytorch/default.nix

···
 in buildPythonPackage rec {
   pname = "pytorch";
   # Don't forget to update pytorch-bin to the same version.
-  version = "1.7.1";
+  version = "1.8.0";
 
   disabled = !isPy3k;
 
···
     repo   = "pytorch";
     rev    = "v${version}";
     fetchSubmodules = true;
-    sha256 = "sha256-udpbSL8xnzf20A1pYYNlYjdp8ME8AVaAkMMiw53K6CU=";
+    sha256 = "sha256-qdZUtlxHZjCYoGfTdp5Bq3MtfXolWZrvib0kuzF3uIc=";
   };
 
   patches = lib.optionals stdenv.isDarwin [