feat: Use torch.inference_mode() for TableQA

[sjrl]

Related Issues

• fixes N/A
• related to PR refactor: replace torch.no_grad with torch.inference_mode (where possible) #3601

Proposed Changes:

• Swapped out all torch.no_grad() calls with torch.inference_mode()
• Updated forward pass of RCIReader to use with torch.inference_mode()

How did you test it?

Existing tests

Notes for the reviewer

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added tests that demonstrate the correct behavior of the change
• I've used the conventional commit convention for my PR title
• I documented my code
• I ran pre-commit hooks and fixed any issue

[julian-risch]

Looks very good to me! 👍 Thanks for picking up the topic so quickly after my comment. Great to see how we benefit from upgrading the transformers version in different parts of the code.