Changes required for spack-stack 1.9.3 installation

[RatkoVasic-NOAA]

Description

While installing [email protected] we found some changes needed for Cloud and Hera, as well as correct documentation for Derecho. Some of these changes are already in development branch.

Edited spack-stack Wiki and added Ursa documentation.

Dependencies

Issues addressed

No issue opened, small PR.

Applications affected

Systems affected

NOAA-cloud and Hera.

Testing

• 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.
• All necessary updates to the documentation on readthedocs are included in this PR
  • For site config updates, check in particular doc/source/PreConfiguredSites.rst and doc/source/MaintainersSection.rst
• All necessary updates to the spack-stack wiki will be made when this PR is merged

[climbfuji]

Looks reasonable to me. Thanks @RatkoVasic-NOAA

[climbfuji]

@natalie-perlin or @AlexanderRichert-NOAA Can you please review when you get a chance? Thanks!