Some final preparations #430

Job	Run time
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 31s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	1m 9s
Test documentation website generation	37s
Build distribution packages	20s
Cross-arch tests with nox	-1s
Cross-arch tests with nox	-1s
Test package installation in different architectures	3m 11s
Test with nox	4s
Publish documentation website to GitHub pages	0s
Create GitHub release	0s
Publish packages to PyPI	0s
	6m 50s

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