Fix ModuleNotFoundError in ptq

[HolyWu]

Description

holy@HOLYWU:~$ python3 -c "import torch_tensorrt.ts.ptq"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/holy/.local/lib/python3.10/site-packages/torch_tensorrt/ts/ptq.py", line 14, in <module>
    from py.torch_tensorrt.ts.logging import Level, log
ModuleNotFoundError: No module named 'py'

Type of change

• Bug fix (non-breaking change which fixes an issue)

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
• I have added the relevant labels to my PR in so that relevant reviewers are notified

[narendasan]

LGTM thanks!