Sammy/factor out io libs

[samster25]

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[codspeed-hq]

CodSpeed Performance Report

Merging #3266 will degrade performances by 29.69%

_{Comparing sammy/factor-out-io-libs (c0b2626) with main (05048d9)}

Summary

❌ 2 regressions
✅ 15 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	sammy/factor-out-io-libs	Change
❌	test_iter_rows_first_row[100 Small Files]	331.6 ms	368.7 ms	-10.05%
❌	test_show[100 Small Files]	32.2 ms	45.8 ms	-29.69%