[CI] Upgrade Maintainers CI to ubuntu-24.04

[marcalff]

Fixes # (issue)

Changes

Please provide a brief description of the changes here.

• Upgraded maintainer CI from gcc-13 on ubuntu 22-04 to gcc-14 on ubuntu 24-04
  • This is required as gcc-13 was removed, see Ubuntu 22.04, GNU C++ 13.1.0 removed from image 20240514.2.1 actions/runner-images#9866
• Upgraded maintainer CI from clang-15 on ubuntu 22-04 to clang-18 on ubuntu 24-04
• Disabled include-what-you-use (IWYU)
  • iwyu crashes on ubuntu 24-04, and testing under clang-18 is deemed more important
  • The CI integration for iwyu was incomplete, producing logs that are never inspected and fixed
  • More work is needed to integrate iwyu to produce a clean pass or fail (with logs) result, that can be enforced.

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.52%. Comparing base (497eaf4) to head (b675b98).
Report is 61 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2670      +/-   ##
==========================================
+ Coverage   87.12%   87.52%   +0.40%     
==========================================
  Files         200      188      -12     
  Lines        6109     5840     -269     
==========================================
- Hits         5322     5111     -211     
+ Misses        787      729      -58     

see 55 files with indirect coverage changes

[lalitb]

Thanks.