tests: lxml on >=39

[codecov[bot]]

Codecov Report

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

Comparison is base (835d60d) 95.43% compared to head (3e06783) 95.43%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #200 +/- ## ======================================= Coverage 95.43% 95.43% ======================================= Files 17 17 Lines 2346 2346 ======================================= Hits 2239 2239 Misses 107 107 ```

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[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #200 will create unknown performance changes

_{Comparing lxml (3e06783) with main (835d60d)}

Summary

🆕 13 new benchmarks

Benchmarks breakdown

	Benchmark	main	lxml	Change
🆕	test_time_imread[jonas_control002]	N/A	148.3 ms	N/A
🆕	test_time_imread_dask[jonas_control002]	N/A	4.4 s	N/A
🆕	test_time_imread_dask[dims_p2z5t3-2c4y32x32]	N/A	305.9 ms	N/A
🆕	test_time_all_metadata[train_TR67_Inj7_fr50]	N/A	210.5 ms	N/A
🆕	test_time_all_metadata[jonas_control002]	N/A	39.8 ms	N/A
🆕	test_time_imread_dask[train_TR67_Inj7_fr50]	N/A	729.6 ms	N/A
🆕	test_time_all_metadata[dims_p2z5t3-2c4y32x32]	N/A	204.1 ms	N/A
🆕	test_time_all_metadata[karl_sample_image]	N/A	355.2 ms	N/A
🆕	test_time_imread[train_TR67_Inj7_fr50]	N/A	122.6 ms	N/A
🆕	test_time_all_metadata[aryeh_but3_cont200-1]	N/A	98.4 ms	N/A
🆕	test_time_imread[dims_p2z5t3-2c4y32x32]	N/A	178.8 ms	N/A
🆕	test_time_imread_dask[karl_sample_image]	N/A	2.6 s	N/A
🆕	test_time_imread[karl_sample_image]	N/A	1.5 s	N/A