fix: fix for dask 2024.8

[tlambert03]

closes #239

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.97%. Comparing base (a515efd) to head (4ca706c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #240      +/-   ##
==========================================
+ Coverage   94.92%   94.97%   +0.05%     
==========================================
  Files          18       18              
  Lines        2424     2429       +5     
==========================================
+ Hits         2301     2307       +6     
+ Misses        123      122       -1     

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[codspeed-hq]

CodSpeed Performance Report

Merging #240 will degrade performances by 21.17%

_{Comparing fix-dask (4ca706c) with main (a515efd)}

Summary

❌ 2 regressions
✅ 11 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	fix-dask	Change
❌	test_time_imread_dask[dims_p2z5t3-2c4y32x32]	60.1 ms	72.8 ms	-17.43%
❌	test_time_imread_dask[jonas_control002]	778.9 ms	988.1 ms	-21.17%