Update gaea-c6 config for new CPE PrgEnv-intel/8.6.0 and oneapi@2024.2.1 compilers

[rickgrubin-noaa]

Description

Update gaea-c6 site config files for new CPE PrgEnv-intel/8.6.0 and Intel oneAPI@2024.2.1 compilers

Dependencies

None

Issues addressed

None

Applications affected

Any application that builds against oneapi@2024.2.1 compilers and cray-mpich MPI

Systems affected

gaea-c6

Testing

New test baselines created / all tests passed.

Tests run to compare against new baselines passed.

• CI: Note whether the automatic tests (GitHub actions tests that run automatically for every commit) pass or not
  • GitHub actions CI tests pass
  • GitHub actions CI tests do not pass (provide explanation)
  • GitHub actions CI tests skipped (provide explanation if necessary)
• New tests added: List and describe any new tests added to GitHub actions
  • ...
• Additional testing: Add information on any additional tests conducted
  • ...

Checklist

• This PR addresses one issue/problem/enhancement or has a very good reason for not doing so.
• These changes have been tested on the affected systems and applications.
• All dependency PRs/issues have been resolved and this PR can be merged.