test

Bump mypy from 1.20.2 to 2.1.0 #2610

Job	Run time
ubuntu-24.04-arm - 3.12	8m 6s
ubuntu-latest - 3.15-dev	9m 44s
ubuntu-latest - 3.14	9m 14s
windows-latest - 3.14	13m 36s
ubuntu-latest - 3.11	8m 55s
ubuntu-latest - pypy-3.11	14m 12s
ubuntu-24.04-arm - 3.14 free-threading	7m 44s
ubuntu-latest - 3.14 free-threading	8m 54s
ubuntu-latest - 3.13	8m 53s
ubuntu-24.04-arm - 3.14	8m 14s
ubuntu-latest - 3.12	8m 52s
ubuntu-latest - 3.15-dev free-threading	11m 6s
ubuntu-24.04-arm - 3.11	8m 9s
ubuntu-latest - 3.10	7m 33s
ubuntu-24.04-arm - 3.10	6m 51s
macos-latest - 3.14	8m 9s
ubuntu-24.04-arm - 3.13	7m 26s
	2h 35m 38s

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