Updated CI/CD to keep build artifacts.

[MicahGale]

Pull Request Checklist for MontePy

Description

Short CI/CD update to keep at least one set of build artifacts.

Fixes #633

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General Checklist

• I have performed a self-review of my own code.
• The code follows the standards outlined in the development documentation.
• I have added tests that prove my fix is effective or that my feature works (if applicable).

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Documentation Checklist

• I have documented all added classes and methods.
• For infrastructure updates, I have updated the developer's guide.
• For significant new features, I have added a section to the getting started guide.

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First-Time Contributor Checklist

• If this is your first contribution, add yourself to pyproject.toml if you wish to do so.

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Additional Notes for Reviewers

Ensure that:

• The submitted code is consistent with the merge checklist outlined here.
• The PR covers all relevant aspects according to the development guidelines.
• 100% coverage of the patch is achieved, or justification for a variance is given.

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📚 Documentation preview 📚: https://montepy--644.org.readthedocs.build/en/644/

[MicahGale]

You can see the artifacts are saved here: https://github.com/idaholab/MontePy/actions/runs/12931396920?pr=644