fix: use spawn for torch.utils.data.DataLoader

[ilan-gold]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.08%. Comparing base (e42d367) to head (e9e750a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #51      +/-   ##
==========================================
- Coverage   83.63%   82.08%   -1.55%     
==========================================
  Files           8        8              
  Lines         605      603       -2     
==========================================
- Hits          506      495      -11     
- Misses         99      108       +9     

Files with missing lines	Coverage Δ
src/arrayloaders/anndata_manager.py	91.41% <ø> (+0.41%)	⬆️

... and 1 file with indirect coverage changes

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