Update PyTorch pin (#2469)

Closes #2473

CI status: 
*
~https://github.com/intel/intel-xpu-backend-for-triton/actions/runs/11290528037~
*
https://github.com/intel/intel-xpu-backend-for-triton/actions/runs/11352733024

---------

Signed-off-by: Anatoly Myachev <[email protected]>

Author: anmyachev

.github/pins/pytorch-upstream.txt

@@ -1 +1 @@
-0a2685160140656e3e53818611dd2c65c4397be5
+8321eec009c8c79145ebccd51fdfc336e5f8b848

python/triton/runtime/autotuner.py

@@ -90,6 +90,10 @@ def _post_hook(args, exception):
         while not inspect.isfunction(self.base_fn):
             self.base_fn = self.base_fn.fn
 
+        self.num_warmups = warmup
+        self.num_reps = rep
+        self.use_cuda_graph = use_cuda_graph
+
         # If we got explicitly called via the old interface, raise a warning
         # and proceed with the old behavior.
         if warmup is not None or rep is not None or use_cuda_graph: