Tests

Update pythoncapi_compat.h (#18340) #14242

Job	Run time
Test suite with py39-ubuntu, mypyc-compiled	18m 28s
Test suite with py39-windows-64	20m 56s
Test mypyc suite with 32-bit Python	7m 11s
Test suite with py310-ubuntu	17m 8s
Test suite with py311-ubuntu, mypyc-compiled	16m 32s
Test suite with py312-ubuntu, mypyc-compiled	18m 14s
Test suite with py313-ubuntu, mypyc-compiled	18m 35s
mypyc runtime tests with py39-macos	6m 17s
Type check our own code (py39-ubuntu)	1m 52s
Type check our own code (py39-windows-64)	2m 16s
Formatting and code style with Black + ruff	54s
	2h 8m 23s

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