Test

⬆ Bump mypy from 1.20.2 to 2.0.0 #1198

Job	Run time
test (windows-latest, 3.14, highest)	38s
test (3.10, ubuntu-latest, lowest-direct)	18s
test (3.12, macos-latest, lowest-direct)	38s
test (3.11, windows-latest, highest)	32s
test (3.13, windows-latest, highest)	51s
test (ubuntu-latest, 3.14, highest)	15s
test (3.13, ubuntu-latest, highest)	20s
test (macos-latest, 3.14, highest)	23s
coverage-combine	11s
check	2s
	4m 8s

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