Simplify workflow yaml

[markhermeling]

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.

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• Include explicitly what issue it addresses [e.g. Fixes #X]

Testing performed
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Expected behavior changes
A clear and concise description of how this contribution will change behavior and level of impact.

• API Change: xxx (if applicable)
• Behavior Change: xxx (if applicable)
• Or no impact to behavior

System(s) tested on

• Hardware: [e.g. PC, SP0, MCP750]
• OS: [e.g. Ubuntu 18.04, RTEMS 4.11, VxWorks 6.9]
• Versions: [e.g. cFE 6.6, OSAL 4.2, PSP 1.3 for mcp750, any related apps or tools]

Additional context
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Code contributions
The cFS repository is provided to bundle the cFS Framework. It is utilized for bundling submodules, continuous integration testing, and version management and does not contain any software. Code contributions should be directed to the appropriate submodule.

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