Tests

Write serialized options to a file to broadcast to workers (#21306) #21908

Job	Run time
Test mypyc suite with 32-bit Python	10m 54s
Test suite with py314-ubuntu, mypyc-compiled	15m 39s
mypyc runtime tests with py310-ubuntu	6m 58s
Parallel tests with py314-ubuntu, mypyc-compiled	30m 25s
Test suite with py312-ubuntu	10m 6s
Test suite with py313-ubuntu, mypyc-compiled	15m 30s
Test suite with py310-ubuntu, mypyc-compiled	16m 14s
Test suite with py314t-ubuntu, mypyc-compiled	17m 51s
Type check our own code (py310-windows-64)	1m 48s
Type check our own code (py310-ubuntu)	1m 5s
Parallel tests with py314-windows-64, interpreted	12m 17s
Test suite with py314-windows-64	30m 35s
Test suite with py311-ubuntu	8m 57s
Parallel tests with py314-ubuntu, interpreted	25m 24s
mypyc runtime tests with py313-macos	5m 3s
Formatting and code style with Black + ruff	1m 55s
	3h 30m 41s

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