Update type hint for `register_notrace_module`

register_notrace_module is used to decorate types (i.e. subclasses of nn.Module).
It is not called on module instances.

timm/models/fx_features.py

@@ -1,7 +1,7 @@
 """ PyTorch FX Based Feature Extraction Helpers
 Using https://pytorch.org/vision/stable/feature_extraction.html
 """
-from typing import Callable, List, Dict, Union
+from typing import Callable, List, Dict, Union, Type
 
 import torch
 from torch import nn
@@ -35,7 +35,7 @@ except ImportError:
     pass
 
 
-def register_notrace_module(module: nn.Module):
+def register_notrace_module(module: Type[nn.Module]):
     """
     Any module not under timm.models.layers should get this decorator if we don't want to trace through it.
     """