Migrate to Cython 3 #284

Job	Run time
osx_wheels_create (x86_64)	6m 37s
windows_wheels_tests (3.7)	2m 0s
windows_wheels_tests (3.8)	1m 41s
docs	2m 15s
osx_wheels_create (arm64)	6m 3s
windows_wheels_tests (3.9)	1m 42s
linux_wheels (ubuntu-latest, x86_64, cp37-manylinux_x86_64 cp38-manylinux_x86_64 cp39-manylinux_x...	32m 34s
windows_wheels_tests (3.10)	1m 54s
windows_wheels_tests (3.11)	1m 32s
windows_wheels_tests (3.12)	1m 53s
linux_test_src	1m 46s
osx_wheels_fuse_test_upload	0s
linux_test_wheel	0s
	59m 57s

Provide feedback