Mypybot/sync typeshed #12458

Job	Run time
Test mypyc suite with 32-bit Python	7m 6s
Test suite with py38-ubuntu, mypyc-compiled	17m 35s
Test suite with py38-windows-64	19m 34s
Test suite with py39-ubuntu	16m 30s
Test suite with py310-ubuntu	15m 58s
Test suite with py311-ubuntu, mypyc-compiled	15m 31s
Test suite with py312-ubuntu, mypyc-compiled	17m 40s
mypyc runtime tests with py39-macos	5m 0s
mypyc runtime tests with py38-debug-build-ubuntu	4m 42s
Type check our own code (py38-ubuntu)	1m 50s
Type check our own code (py38-windows-64)	2m 16s
Formatting and code style with Black + ruff	41s
	2h 4m 23s

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