fix MutableTorchTensorRTModule load issue

[lanluo-nvidia]

Description

got the following test issue due to the upstream pytorch change:

except pickle.UnpicklingError as e:
>                           raise pickle.UnpicklingError(_get_wo_message(str(e))) from None
E                           _pickle.UnpicklingError: Weights only load failed. This file can still be loaded, to do so you have two options, [1mdo those steps only if you trust the source of the checkpoint[0m.
E                               (1) Re-running `torch.load` with `weights_only` set to `False` will likely succeed, but it can result in arbitrary code execution. Do it only if you got the file from a trusted source.
E                               (2) Alternatively, to load with `weights_only=True` please check the recommended steps in the following error message.
E                               WeightsUnpickler error: Unsupported global: GLOBAL torch_tensorrt.dynamo.runtime._MutableTorchTensorRTModule.MutableTorchTensorRTModule was not an allowed global by default. Please use `torch.serialization.add_safe_globals([MutableTorchTensorRTModule])` or the `torch.serialization.safe_globals([MutableTorchTensorRTModule])` context manager to allowlist this global if you trust this class/function.
E
E                           Check the documentation of torch.load to learn more about types accepted by default with weights_only https://pytorch.org/docs/stable/generated/torch.load.html.

Fixes # (issue)

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project (You can use the linters)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas and hacks
• I have made corresponding changes to the documentation
• I have added tests to verify my fix or my feature
• New and existing unit tests pass locally with my changes
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[narendasan]

LGTM