Test

⬆ Bump mypy from 1.20.0 to 1.20.1 (#364) #1127

Job	Run time
test (ubuntu-latest, 3.14, highest)	22s
test (3.13, windows-latest, highest)	41s
test (macos-latest, 3.14, highest)	26s
test (windows-latest, 3.14, highest)	40s
test (3.10, ubuntu-latest, lowest-direct)	23s
test (3.13, ubuntu-latest, highest)	23s
test (3.11, windows-latest, highest)	38s
test (3.12, macos-latest, lowest-direct)	35s
coverage-combine	18s
check	4s
	4m 30s

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