Tests

Sync typeshed (#20605) #20200

Job	Run time
Test mypyc suite with 32-bit Python	9m 59s
Test suite with py310-ubuntu, mypyc-compiled	14m 48s
Test suite with py311-ubuntu	9m 10s
mypyc runtime tests with py313-macos	5m 47s
Test suite with py314-windows-64	27m 3s
Test suite with py313-ubuntu, mypyc-compiled	14m 48s
Parallel tests with py314-ubuntu, mypyc-compiled	27m 24s
Test suite with py314t-ubuntu, mypyc-compiled	17m 15s
Test suite with py312-ubuntu	9m 37s
mypyc runtime tests with py310-ubuntu	5m 55s
Test suite with py314-ubuntu, mypyc-compiled	15m 12s
Type check our own code (py310-windows-64)	3m 25s
Parallel tests with py314-ubuntu, interpreted	21m 36s
Formatting and code style with Black + ruff	1m 52s
Type check our own code (py310-ubuntu)	1m 43s
	3h 5m 34s

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