GitHub Actions Reconfig for Test Run

[sam-rice]

Description

This branch updates the version of Node using by GitHub Actions to v20. Node v16 was being used previously, which has been deprecated by GitHub Actions, and was causing the CI run to fail/abort before tests were run.

Fixes #373

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:

• 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
• Any dependent changes have been merged and published in downstream modules