[ENH] add proper error when a column cannot be found in participants.tsv

[Remi-Gau]

closes #1046

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.96%. Comparing base (7d52979) to head (2098c4f).
Report is 187 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1050      +/-   ##
==========================================
+ Coverage   79.95%   79.96%   +0.01%     
==========================================
  Files         244      245       +1     
  Lines        6655     6660       +5     
  Branches       40       40              
==========================================
+ Hits         5321     5326       +5     
  Misses       1318     1318              
  Partials       16       16              

Flag	Coverage Δ
cli	38.99% <ø> (ø)
macos-latest_matlab-R2022b	81.23% <100.00%> (+0.01%)	⬆️
octave	77.14% <100.00%> (+0.01%)	⬆️
ubuntu-latest_matlab-R2022b	81.40% <100.00%> (+0.01%)	⬆️

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