fix: surface the correct kernel objectstore error

[ion-elgreco]

Description

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.73%. Comparing base (d2c8429) to head (90674ce).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
python/src/error.rs	0.00%	24 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3888      +/-   ##
==========================================
- Coverage   73.74%   73.73%   -0.01%     
==========================================
  Files         151      151              
  Lines       39347    39349       +2     
  Branches    39347    39349       +2     
==========================================
  Hits        29015    29015              
- Misses       9021     9023       +2     
  Partials     1311     1311              

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