Remove dataset from blocklist

[ivirshup]

Fixes #1263

Dataset has been fixed and can be re-added, see:

• Gene Expression and Cell Type Issues in published Collection single-cell-curation#981

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.94%. Comparing base (acfde71) to head (23e78e2).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1370      +/-   ##
==========================================
- Coverage   92.43%   91.94%   -0.49%     
==========================================
  Files          83       83              
  Lines        6739     6744       +5     
==========================================
- Hits         6229     6201      -28     
- Misses        510      543      +33     

Flag	Coverage Δ
unittests	91.94% <ø> (-0.49%)	⬇️

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