[Backport release-1.15] [python] Validate byteorder on fastercsx argument arrays

[github-actions]

Backport fbeee6f from #3508

[johnkerl]

This does not immediately backport from main to release-1.15 since we currently have C++20 on main but C++17 on release-1.15

https://github.com/single-cell-data/TileDB-SOMA/actions/runs/12654002797/job/35260823182

  src/tiledbsoma/fastercsx.cc:118:47: error: ‘std::endian’ has not been declared
    118 |     if constexpr (std::endian::native == std::endian::big)

See also #3154

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.37%. Comparing base (bb22c8b) to head (1d861e5).
Report is 4 commits behind head on release-1.15.

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.15    #3521      +/-   ##
================================================
+ Coverage         86.33%   86.37%   +0.04%     
================================================
  Files                55       55              
  Lines              6365     6365              
================================================
+ Hits               5495     5498       +3     
+ Misses              870      867       -3     

Flag	Coverage Δ
python	86.37% <ø> (+0.04%)	⬆️

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Components	Coverage Δ
python_api	86.37% <ø> (+0.04%)	⬆️
libtiledbsoma	∅ <ø> (∅)