Fix chunking bug with compound dtypes

[pauladkisson]

Fixes #1122

See Dev Tests: https://github.com/catalystneuro/neuroconv/actions/runs/11978184315/job/33397677061

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.69%. Comparing base (a608e90) to head (9fb42ee).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1146      +/-   ##
==========================================
+ Coverage   90.67%   90.69%   +0.01%     
==========================================
  Files         129      129              
  Lines        8182     8196      +14     
==========================================
+ Hits         7419     7433      +14     
  Misses        763      763              

Flag	Coverage Δ
unittests	90.69% <100.00%> (+0.01%)	⬆️

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Files with missing lines	Coverage Δ
..._helpers/_configuration_models/_base_dataset_io.py	97.10% <100.00%> (+0.32%)	⬆️

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