test

Bump mypy from 1.19.1 to 1.20.2 (#469) #2556

Job	Run time
ubuntu-24.04-arm - 3.13	7m 25s
ubuntu-latest - 3.12	8m 45s
ubuntu-latest - 3.10	7m 46s
ubuntu-24.04-arm - 3.11	8m 19s
ubuntu-24.04-arm - 3.14 free-threading	7m 45s
ubuntu-latest - 3.11	8m 21s
ubuntu-latest - 3.13	8m 20s
ubuntu-24.04-arm - 3.10	6m 37s
ubuntu-latest - 3.14 free-threading	8m 20s
ubuntu-latest - pypy-3.11	13m 22s
ubuntu-24.04-arm - 3.12	7m 34s
ubuntu-latest - 3.15-dev	2m 31s
ubuntu-latest - 3.15-dev free-threading	2m 31s
ubuntu-24.04-arm - 3.14	7m 22s
macos-latest - 3.14	7m 25s
windows-latest - 3.14	13m 9s
ubuntu-latest - 3.14	8m 56s
	2h 14m 28s

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