Tests

Fix bug with dmypy not respecting @no_type_check after change in dependency #22550

Job	Run time
Test mypyc suite with 32-bit Python	11m 54s
Formatting and code style with Black + ruff	1m 58s
mypyc runtime tests with py313-macos	6m 6s
Test suite with py315-ubuntu, mypyc-compiled	16m 31s
Test suite with py312-ubuntu	10m 32s
Type check our own code (py310-ubuntu)	1m 15s
Test suite with py314t-ubuntu, mypyc-compiled	17m 45s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 55s
Type check our own code (py310-windows-64)	1m 55s
Parallel tests with py314-windows-64, interpreted	12m 18s
Test suite with py310-ubuntu, mypyc-compiled	16m 51s
Parallel tests with py314-ubuntu, interpreted	26m 29s
Test suite with py314-ubuntu, mypyc-compiled	17m 11s
Test suite with py313-ubuntu, mypyc-compiled	16m 23s
Test suite with py314-windows-64	32m 54s
Test suite with py311-ubuntu	9m 36s
mypyc runtime tests with py310-ubuntu	7m 15s
	3h 55m 48s

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