Test

Add Python 3.15 test infrastructure #35975

Job	Run time
Check typeshed structure	15s
mypy: Run test cases	8m 39s
stub_uploader tests	4m 43s
pyright: Run test cases (Linux, 3.12)	1m 26s
pyright: Run test cases (Linux, 3.15)	1m 33s
pyright: Run test cases (Linux, 3.14)	5m 36s
pyright: Run test cases (Windows, 3.12)	1m 22s
pyright: Run test cases (Linux, 3.11)	1m 25s
pyright: Run test cases (Windows, 3.14)	1m 19s
pyright: Run test cases (Windows, 3.13)	1m 40s
pyright: Run test cases (Windows, 3.15)	1m 51s
mypy: Check stubs (linux, 3.14)	2m 5s
pyright: Run test cases (Darwin, 3.14)	1m 31s
pyright: Run test cases (Darwin, 3.11)	1m 23s
pyright: Run test cases (Windows, 3.11)	3m 16s
pyright: Run test cases (Darwin, 3.12)	1m 37s
mypy: Check stubs (win32, 3.14)	2m 7s
mypy: Check stubs (linux, 3.11)	2m 7s
mypy: Check stubs (linux, 3.15)	8m 0s
mypy: Check stubs (win32, 3.10)	2m 44s
mypy: Check stubs (linux, 3.12)	6m 21s
mypy: Check stubs (win32, 3.15)	7m 59s
mypy: Check stubs (win32, 3.12)	2m 12s
mypy: Check stubs (darwin, 3.11)	2m 2s
mypy: Check stubs (darwin, 3.15)	8m 1s
mypy: Check stubs (darwin, 3.14)	1m 54s
mypy: Check stubs (win32, 3.11)	2m 6s
mypy: Check stubs (win32, 3.13)	2m 15s
pyright: Run test cases (Darwin, 3.13)	1m 23s
mypy: Check stubs (darwin, 3.13)	1m 58s
mypy: Check stubs (darwin, 3.12)	1m 55s
mypy: Check stubs (linux, 3.10)	2m 22s
mypy: Check stubs (darwin, 3.10)	1m 50s
mypy: Check stubs (linux, 3.13)	2m 21s
pyright: Run test cases (Darwin, 3.15)	1m 24s
pyright: Run test cases (Linux, 3.13)	1m 33s
	1h 42m 15s

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