Docs: Update broken link in 01_pytorch_workflow.ipynb

[tanmaygaikwad723]

Hello,

I found a broken link while going through the documentation of 01_pytorch_workflow part, and i've fixed the broken link in this PR.

Problem:-
The link to pytorch.inference_mode documentation was broken and led to 404 error.

solution :-
Updated the link of pytorch.inference_mode to its orginial documentation.

files affected :- 01_workflow_pytorch.ipynb