Assume Python 3.12 for MyPy type checking #1475

Job	Run time
sdist	1m 4s
ruff	9s
mypy	24s
parse_sdl (windows-latest, 3.2.16)	1m 1s
parse_sdl (macos-latest, 3.2.16)	39s
tox (ubuntu-latest)	2m 3s
test-docs	1m 56s
pyodide	2m 36s
build-macos (cp310-*_universal2)	1m 56s
linux-wheels (x86_64, cp310-manylinux*)	4m 9s
build-macos (cp314t-*_universal2)	3m 34s
linux-wheels (x86_64, pp311-manylinux*)	4m 26s
linux-wheels (aarch64, cp310-manylinux*)	4m 41s
linux-wheels (aarch64, cp314t-manylinux*)	4m 9s
linux-wheels (aarch64, pp311-manylinux*)	3m 33s
linux-wheels (x86_64, cp314t-manylinux*)	4m 17s
build-macos (pp311-*)	5m 33s
build (windows-latest, 3.10, x64)	3m 14s
build (windows-latest, pypy-3.10, x64)	5m 18s
build (ubuntu-latest, 3.10, x64)	5m 34s
build (ubuntu-latest, pypy-3.10, x64)	4m 59s
build (ubuntu-latest, 3.14t, x64)	3m 41s
build (windows-latest, 3.10, x86)	5m 4s
build (windows-latest, 3.14t, x64)	4m 34s
build (windows-11-arm, 3.14t, arm64)	5m 59s
build (windows-latest, 3.14t, x86)	4m 23s
build (windows-11-arm, 3.11, arm64)	6m 4s
publish	0s
	1h 35m 0s

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