fix: fix for dask 2024.8

[tlambert03]

closes #239

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

Additional details and impacted files

```diff @@ 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[bot]]

CodSpeed Performance Report

Merging #240 will degrade performances by 21.17%

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

Summary

❌ 2 regressions ✅ 11 untouched benchmarks

:warning: 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%