Sync typeshed (#17772) #13165

Job	Run time
Test mypyc suite with 32-bit Python	6m 45s
Test suite with py38-ubuntu, mypyc-compiled	17m 12s
Test suite with py38-windows-64	20m 57s
Test suite with Python nightly	14m 14s
Test suite with py39-ubuntu	18m 14s
Test suite with py310-ubuntu	16m 44s
Test suite with py311-ubuntu, mypyc-compiled	15m 59s
Test suite with py312-ubuntu, mypyc-compiled	17m 26s
mypyc runtime tests with py39-macos	5m 57s
mypyc runtime tests with py38-debug-build-ubuntu	4m 29s
Type check our own code (py38-ubuntu)	1m 49s
Type check our own code (py38-windows-64)	2m 24s
Formatting and code style with Black + ruff	35s
	2h 22m 45s

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