Tests

Start testing Python 3.15 #22203

Job	Run time
Test mypyc suite with 32-bit Python	10m 22s
Test suite with py315-ubuntu, mypyc-compiled	16m 1s
Test suite with py314-ubuntu, mypyc-compiled	16m 12s
Test suite with py314-windows-64	17m 43s
Test suite with py314t-ubuntu, mypyc-compiled	17m 47s
mypyc runtime tests with py310-ubuntu	7m 7s
Parallel tests with py314-ubuntu, mypyc-compiled	17m 48s
Test suite with py312-ubuntu	9m 38s
mypyc runtime tests with py313-macos	6m 16s
Test suite with py311-ubuntu	9m 42s
Type check our own code (py310-windows-64)	1m 46s
Test suite with py313-ubuntu, mypyc-compiled	15m 23s
Parallel tests with py314-ubuntu, interpreted	17m 49s
Formatting and code style with Black + ruff	1m 56s
Parallel tests with py314-windows-64, interpreted	12m 6s
Type check our own code (py310-ubuntu)	1m 15s
Test suite with py310-ubuntu, mypyc-compiled	16m 5s
	3h 14m 56s

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