Updated to latest versions

[carceneaux]

Fixes Update GitHub Workflow #78

• Updated checkout action to v4
• Updated artifact action to v4
• Generating short SHA in-house vs using a 3rd party action

Fixes #78

Type of change

• 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 (check all applicable):

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard to understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes