Add kde-neon-6 to schema

[pedro-avalos]

• Have you followed the guidelines for contributing?
• Have you signed the CLA?
• Have you successfully run tox run -m lint?
• Have you successfully run tox run -e test-py310? (supported versions: py39, py310, py311, py312)

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Addresses #5126

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.71%. Comparing base (654871d) to head (50b124e).
Report is 619 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5127      +/-   ##
==========================================
- Coverage   94.88%   89.71%   -5.17%     
==========================================
  Files         658      342     -316     
  Lines       55189    22640   -32549     
==========================================
- Hits        52364    20312   -32052     
+ Misses       2825     2328     -497     

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[mr-cal]

Thanks!

[lengau]

LGTM, thanks

[mr-cal]

CI is broken, closing and reopening to rerun everything