fix: fix key error in binary data

[tlambert03]

No description provided.

[codecov]

Codecov Report

Merging #176 (16222f6) into main (6260200) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #176   +/-   ##
=======================================
  Coverage   95.10%   95.10%           
=======================================
  Files          17       17           
  Lines        2327     2328    +1     
=======================================
+ Hits         2213     2214    +1     
  Misses        114      114           

Files	Coverage Δ
src/nd2/readers/_modern/modern_reader.py	93.31% <100.00%> (+0.02%)	⬆️

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[codspeed-hq]

CodSpeed Performance Report

Merging #176 will not alter performance

_{Comparing fix-binary (16222f6) with main (6260200)}

Summary

✅ 13 untouched benchmarks