Fix #946, Make Format Check Reusable

[arielswalker]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution
Fixes #946

Testing performed
Tested on my forked cFE that calls this workflow.

Expected behavior changes
Other repositories can run format check.

System(s) tested on
GitHub Actions

Contributor Info - All information REQUIRED for consideration of pull request
Ariel Walker, MCSG TECH.