Sync typeshed (#18082) #13812

Job	Run time
Test mypyc suite with 32-bit Python	7m 4s
Test suite with py38-ubuntu, mypyc-compiled	17m 47s
Test suite with py38-windows-64	20m 38s
Test suite with py39-ubuntu	17m 28s
Test suite with py310-ubuntu	16m 14s
Test suite with py311-ubuntu, mypyc-compiled	15m 57s
Test suite with py312-ubuntu, mypyc-compiled	18m 8s
Test suite with py313-ubuntu, mypyc-compiled	18m 47s
mypyc runtime tests with py39-macos	7m 17s
Type check our own code (py38-ubuntu)	1m 54s
Type check our own code (py38-windows-64)	2m 32s
Formatting and code style with Black + ruff	57s
	2h 24m 43s

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