Make add_segmentation kwarg only

[h-mayorquin]

As in the name.

[codecov]

Codecov Report

❌ Patch coverage is 6.66667% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.99%. Comparing base (b630a43) to head (6c893ae).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/neuroconv/tools/roiextractors/roiextractors.py	6.66%	14 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1687      +/-   ##
==========================================
- Coverage   81.08%   80.99%   -0.09%     
==========================================
  Files         160      160              
  Lines       12574    12589      +15     
==========================================
+ Hits        10195    10196       +1     
- Misses       2379     2393      +14     

Flag	Coverage Δ
unittests	80.99% <6.66%> (-0.09%)	⬇️

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Files with missing lines	Coverage Δ
src/neuroconv/tools/roiextractors/roiextractors.py	75.45% <6.66%> (-1.59%)	⬇️

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