Test

Add Python 3.15 test infrastructure #35988

Job	Run time
Check typeshed structure	13s
stub_uploader tests	5m 11s
pyright: Run test cases (Windows, 3.12)	1m 21s
pyright: Run test cases (Linux, 3.14)	1m 29s
pyright: Run test cases (Linux, 3.13)	1m 47s
mypy: Run test cases	21m 9s
pyright: Run test cases (Darwin, 3.13)	1m 26s
pyright: Run test cases (Windows, 3.14)	1m 52s
pyright: Run test cases (Linux, 3.12)	4m 59s
pyright: Run test cases (Windows, 3.11)	1m 46s
pyright: Run test cases (Windows, 3.13)	1m 42s
mypy: Check stubs (linux, 3.11)	2m 0s
mypy: Check stubs (linux, 3.13)	6m 57s
pyright: Run test cases (Darwin, 3.12)	1m 40s
mypy: Check stubs (win32, 3.11)	1m 58s
mypy: Check stubs (linux, 3.14)	2m 4s
pyright: Run test cases (Linux, 3.11)	1m 19s
pyright: Run test cases (Darwin, 3.14)	1m 33s
mypy: Check stubs (win32, 3.12)	2m 28s
mypy: Check stubs (linux, 3.12)	2m 52s
pyright: Run test cases (Darwin, 3.11)	1m 28s
mypy: Check stubs (win32, 3.13)	1m 54s
mypy: Check stubs (win32, 3.10)	1m 56s
mypy: Check stubs (win32, 3.14)	2m 1s
mypy: Check stubs (win32, 3.15)	4m 54s
mypy: Check stubs (linux, 3.15)	4m 52s
mypy: Check stubs (linux, 3.10)	2m 0s
mypy: Check stubs (darwin, 3.14)	2m 24s
mypy: Check stubs (darwin, 3.11)	2m 8s
mypy: Check stubs (darwin, 3.12)	5m 9s
mypy: Check stubs (darwin, 3.13)	2m 24s
mypy: Check stubs (darwin, 3.15)	5m 9s
mypy: Check stubs (darwin, 3.10)	1m 54s
	1h 43m 59s

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