chore: fix use_cache flag

[peri044]

Description

Fix use_cache flag usage. We could actually remove use_cache flag and use cache if a user provides cache_file. But this would affect the existing workflows and backwards compatibility. So, changes are intentionally minimal here.

Fixes https://github.com/pytorch/TensorRT/issues/2960

Type of change

Please delete options that are not relevant and/or add your own.

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

[narendasan]

Better not change APIs in the legacy system, the fix seems fine