Add Python 3.12 support

[jvdd]

Closes #61

[codspeed-hq]

CodSpeed Performance Report

Merging #65 will degrade performances by 23.57%

_{Comparing python3_12 (b0a5d72) with main (e5e4866)}

Summary

⚡ 2 improvements
❌ 1 (👁 1) regressions
✅ 387 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	python3_12	Change
⚡	test_minmax_no_x[True-float32-100-100,000]	1.3 ms	1.1 ms	+15.61%
👁	test_minmax_with_x[True-float32-100-100,000]	2.5 ms	3.3 ms	-23.57%
⚡	test_minmaxlttb_no_x[True-float64-1,000-100,000]	4.1 ms	3.7 ms	+10.31%