Tests

Sync typeshed (#21665) #22652

Job	Run time
Test mypyc suite with 32-bit Python	11m 55s
Test suite with py314t-ubuntu, mypyc-compiled	18m 17s
mypyc runtime tests with py313-macos	5m 54s
Test suite with py314-ubuntu, mypyc-compiled	15m 47s
Test suite with py313-ubuntu, mypyc-compiled	16m 13s
mypyc runtime tests with py310-ubuntu	7m 39s
Test suite with py311-ubuntu	9m 26s
Test suite with py312-ubuntu	10m 15s
Test suite with py310-ubuntu, mypyc-compiled	15m 49s
Test suite with py315-ubuntu, mypyc-compiled	15m 51s
Type check our own code (py310-ubuntu)	1m 14s
Test suite with py314-windows-64	32m 8s
Parallel tests with py314-ubuntu, interpreted	27m 4s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 6s
Parallel tests with py314-windows-64, interpreted	13m 25s
Formatting and code style with Black + ruff	1m 48s
Type check our own code (py310-windows-64)	2m 2s
	3h 52m 53s

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