Bump isort from 5.13.2 to 6.0.0 (#107) #397

Job	Run time
Build distribution packages	23s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	1m 24s
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_min)	5m 8s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	51s
Test documentation website generation	0s
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_max)	5m 33s
Test package installation in different architectures	2m 44s
Test with nox	1s
Cross-arch tests with nox	1s
Publish documentation website to GitHub pages	35s
Create GitHub release	0s
Publish packages to PyPI	0s
	16m 40s

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