Tests

Fix debug build setup (#17822) #20264

Job	Run time
Test mypyc suite with 32-bit Python	9m 45s
Test suite with py311-ubuntu	9m 25s
Test suite with py314t-ubuntu, mypyc-compiled	17m 35s
Test suite with py313-ubuntu, mypyc-compiled	14m 51s
Test suite with py314-ubuntu, mypyc-compiled	14m 55s
Type check our own code (py310-ubuntu)	1m 41s
mypyc runtime tests with py310-ubuntu	5m 41s
Test suite with py312-ubuntu	9m 57s
Formatting and code style with Black + ruff	2m 2s
Type check our own code (py310-windows-64)	2m 37s
Parallel tests with py314-ubuntu, interpreted	24m 20s
Test suite with py310-ubuntu, mypyc-compiled	15m 29s
mypyc runtime tests with py313-macos	8m 8s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 57s
Test suite with py314-windows-64	27m 42s
	3h 13m 5s

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