pytorch: update linkage to libomp

Author: cho-m

Formula/p/pytorch.rb

@@ -6,7 +6,7 @@ class Pytorch < Formula
   url "https://github.com/pytorch/pytorch/releases/download/v2.8.0/pytorch-v2.8.0.tar.gz"
   sha256 "c70a2c9488f6f6e8af5982a10d1cc2c37b7df5e6506d839daa5d5e250953d7b5"
   license "BSD-3-Clause"
-  revision 3
+  revision 4
 
   livecheck do
     url :stable