Test Orion and Update Doxygen Path

[DavidHuber-NOAA]

Description

This PR is open primarily to run CI on Orion. The doxygen path is also updated.

Resolves #2694

Type of change

• Maintenance (code refactor, clean-up, new CI test, etc.)

Change characteristics

• Is this a breaking change (a change in existing functionality)? NO
• Does this change require a documentation update? NO

How has this been tested?

Will run full suite of tests on Orion

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] My changes generate no new warnings
• [ ] New and existing tests pass with my changes

[emcbot]

Checkout Failed on Orion: Error cloning remote repo 'origin'

[emcbot]

Checkout Failed on Orion: Error cloning remote repo 'origin'

[emcbot]

Build FAILED on Orion with error logs:

/work2/noaa/stmp/CI/ORION/2785/gfs/sorc/logs/build_upp.log

Follow link here to view the contents of the above file(s): (link)

[DavidHuber-NOAA]

Closing. I will open a fresh PR when the UPP is ported to Orion Rocky 9.