Add variant to build Scalasca/Scorep/Cube as part of dev-utils-env

[climbfuji]

Description

Add variant to build scalasca/scorep/cube+gui as part of dev-utils-env, with Spack recipe updates in repos/builtin, see dependencies below.

I was having concretization issues related to qt, similar to what @jim-p-w saw on Derecho after PR #1953 was merged. @jim-p-w is working on a PR that essentially does the same for all tier-1 sites than what I am doing:

• config/common/packages.yaml only requires qt@5
• Each site either has qt:buildable:false or has a requirement to use c,cxx=gcc in the site's packages_oneapi-<version>.yaml for qt. The reason we can't have it in configs/common/packages_oneapi.yaml is that Spack currently lacks support for "require something only if it is not external".

Dependencies

• Waiting on Bug fixes for scalasca, scorep, py-pyhdf for Intel oneAPI, including oneapi@2026.0.0 spack-packages#57

Issues addressed

Closes #1885

Applications affected

None (variant is off by default)

Systems affected

Bounty, Blueback

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
  • Installed Scalasca on Bounty with oneapi@2026.0.0 as part of neptune-env ^dev-utils-env+scalasca, ran smoke test only

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 (spack-stack wiki) will be made when this PR is merged

[climbfuji]

@AlexanderRichert-NOAA Early review / sneak preview. Please let me know if that works for you. Thanks!

[AlexanderRichert-NOAA]

Looks good, thanks!