Sync typeshed (#17729) #13122

Job	Run time
Test suite with py38-ubuntu, mypyc-compiled	17m 12s
Test suite with py38-windows-64	19m 55s
Test mypyc suite with 32-bit Python	7m 4s
Test suite with py39-ubuntu	16m 32s
Test suite with py310-ubuntu	15m 28s
Test suite with Python nightly	14m 3s
Test suite with py311-ubuntu, mypyc-compiled	15m 24s
Test suite with py312-ubuntu, mypyc-compiled	17m 53s
mypyc runtime tests with py39-macos	4m 20s
mypyc runtime tests with py38-debug-build-ubuntu	4m 21s
Type check our own code (py38-ubuntu)	1m 46s
Type check our own code (py38-windows-64)	2m 5s
Formatting and code style with Black + ruff	32s
	2h 16m 35s

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