Test

⬆ Bump mypy from 1.19.1 to 1.20.0 (#351) #1099

Job	Run time
test (3.13, ubuntu-latest, highest)	17s
test (3.12, macos-latest, lowest-direct)	31s
test (3.10, ubuntu-latest, lowest-direct)	21s
test (3.13, windows-latest, highest)	32s
test (3.11, windows-latest, highest)	43s
test (windows-latest, 3.14, highest)	1m 4s
test (ubuntu-latest, 3.14, highest)	17s
test (macos-latest, 3.14, highest)	19s
coverage-combine	18s
check	3s
	4m 25s

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