Bump mypy from 1.20.2 to 2.1.0 (#303) #766

Job	Run time
Build distribution packages	20s
Test with nox (ubuntu-24.04-arm, 3.11, ci_checks_max)	1m 6s
Test with nox (ubuntu-24.04-arm, 3.11, pytest_min)	48s
Test with nox (ubuntu-24.04, 3.11, ci_checks_max)	1m 5s
Test with nox (ubuntu-24.04, 3.12, pytest_min)	41s
Test with nox (ubuntu-24.04-arm, 3.12, pytest_min)	43s
Test with nox (ubuntu-24.04, 3.12, ci_checks_max)	1m 7s
Test with nox (ubuntu-24.04-arm, 3.12, ci_checks_max)	1m 5s
Test with nox (ubuntu-24.04, 3.11, pytest_min)	38s
Test documentation website generation	0s
Test package installation (ubuntu-24.04-arm, 3.11)	23s
Test package installation (ubuntu-24.04, 3.11)	10s
Test package installation (ubuntu-24.04-arm, 3.12)	22s
Test package installation (ubuntu-24.04, 3.12)	10s
Test with nox	3s
Test package installation	5s
Publish documentation website to GitHub pages	28s
Create GitHub release	0s
Publish packages to PyPI	-1s
	9m 13s

Provide feedback