Add error handling for brain age model

[1Pravi]

Hi Team,

This pull request improves the brainage() function in brain_age.py by adding error handling and sys.exit() for better reliability. The changes ensure the code handles errors gracefully and provides informative feedback to users.

Please review. Thanks.

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[sarthakpati]

Thank you for your interest in contributing to GaNDLF! 😄

[sarthakpati]

Requesting minor syntactic changes.

[1Pravi]

Yes, sir i replaced

[sarthakpati]

Great! I can give the approval once the CLA is signed.

[sarthakpati]

Hey, there is some issue with your branch, and it is showing 237 changed files:

Could you please ensure that the edits are to the brain age model file and nothing else? That should fix the conflict issues as well.

[sarthakpati]

Hi @1Pravi, have you already signed the CLA?

[sarthakpati]

Hi @1Pravi, have you already signed the CLA?

[sarthakpati]

Hi @1Pravi, have you already signed the CLA?

@1Pravi have you signed the CLA? We should be able to merge this PR once that's done.

[sarthakpati]

I am following up on the CLA (#736).