Reset release notes and migration script for the next release #393

Job	Run time
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_min)	8m 8s
Test with nox (ubuntu-20.04, 3.11, ci_checks_max)	6m 7s
Build distribution packages	17s
Cross-arch tests with nox (arm64, ubuntu-20.04, 3.11, pytest_max)	8m 37s
Test with nox (ubuntu-20.04, 3.11, pytest_min)	5m 50s
Test documentation website generation	0s
Test package installation in different architectures	1m 28s
Test with nox	3s
Cross-arch tests with nox	1s
Publish documentation website to GitHub pages	42s
Create GitHub release	0s
Publish packages to PyPI	0s
	31m 13s

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