Test

Add Python 3.15 test infrastructure #35994

Job	Run time
stub_uploader tests	1m 57s
mypy: Run test cases	1m 56s
Check typeshed structure	12s
pyright: Run test cases (Windows, 3.12)	1m 55s
pyright: Run test cases (Windows, 3.11)	1m 15s
pyright: Run test cases (Darwin, 3.12)	1m 17s
pyright: Run test cases (Darwin, 3.14)	1m 14s
pyright: Run test cases (Linux, 3.13)	1m 18s
pyright: Run test cases (Linux, 3.12)	1m 16s
pyright: Run test cases (Windows, 3.14)	1m 23s
pyright: Run test cases (Darwin, 3.13)	1m 22s
pyright: Run test cases (Windows, 3.13)	1m 27s
pyright: Run test cases (Linux, 3.11)	1m 55s
mypy: Check stubs (linux, 3.12)	1m 30s
mypy: Check stubs (darwin, 3.14)	1m 23s
mypy: Check stubs (win32, 3.11)	1m 47s
mypy: Check stubs (win32, 3.14)	1m 56s
mypy: Check stubs (linux, 3.14)	1m 56s
mypy: Check stubs (linux, 3.15)	1m 57s
mypy: Check stubs (linux, 3.11)	1m 25s
mypy: Check stubs (darwin, 3.12)	1m 55s
mypy: Check stubs (win32, 3.15)	1m 28s
mypy: Check stubs (win32, 3.10)	1m 55s
pyright: Run test cases (Darwin, 3.11)	1m 44s
mypy: Check stubs (win32, 3.12)	1m 55s
mypy: Check stubs (darwin, 3.10)	1m 55s
mypy: Check stubs (linux, 3.10)	1m 53s
mypy: Check stubs (darwin, 3.13)	1m 32s
mypy: Check stubs (darwin, 3.11)	1m 55s
pyright: Run test cases (Linux, 3.14)	1m 13s
mypy: Check stubs (darwin, 3.15)	1m 56s
mypy: Check stubs (win32, 3.13)	1m 32s
mypy: Check stubs (linux, 3.13)	1m 56s
	53m 10s

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