Tests

Make NoneType annotation error a new code #19337

Job	Run time
Test mypyc suite with 32-bit Python	8m 58s
Test suite with py39-ubuntu, mypyc-compiled	15m 23s
Test suite with py310-ubuntu	12m 41s
mypyc runtime tests with py310-ubuntu	4m 40s
Test suite with py313-ubuntu, mypyc-compiled	14m 27s
Test suite with py311-ubuntu	9m 16s
Test suite with py314-ubuntu, mypyc-compiled	14m 38s
Test suite with py312-ubuntu, mypyc-compiled	14m 19s
Test suite with py314-windows-64	27m 11s
Type check our own code (py39-ubuntu)	1m 39s
mypyc runtime tests with py313-macos	5m 4s
Type check our own code (py39-windows-64)	2m 14s
Formatting and code style with Black + ruff	2m 2s
	2h 12m 32s

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