Tests

[mypyc] fix: isinstance_native fast path conflict w/ interp. subclasses [1/1] #19388

Job	Run time
Test mypyc suite with 32-bit Python	2m 53s
Test suite with py311-ubuntu	2m 50s
Test suite with py39-ubuntu, mypyc-compiled	1m 55s
Test suite with py314-ubuntu, mypyc-compiled	1m 29s
Test suite with py314-windows-64	2m 43s
Test suite with py313-ubuntu, mypyc-compiled	1m 29s
mypyc runtime tests with py313-macos	2m 55s
Type check our own code (py39-ubuntu)	1m 41s
Type check our own code (py39-windows-64)	2m 16s
Test suite with py312-ubuntu, mypyc-compiled	1m 23s
Test suite with py310-ubuntu	2m 51s
Formatting and code style with Black + ruff	1m 54s
mypyc runtime tests with py310-ubuntu	2m 53s
	29m 12s

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