Fix #760, Renames unit-test-coverage.yml workflow name

[chillfig]

Checklist (Please check before submitting)

• [x] I reviewed the Contributing Guide.
• [x] 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 #760, Adds a unique workflow name for the unit-test-coverage.yml.

Testing performed Workflows

Expected behavior changes Readability. Non-behavior change.

System(s) tested on N/A

Additional context N/A

Code contributions N/A

Contributor Info - All information REQUIRED for consideration of pull request Justin Figueroa, Vantage Systems