Tests

Fix pathspec error #21874

Job	Run time
Test mypyc suite with 32-bit Python	10m 19s
Test suite with py312-ubuntu	9m 41s
Test suite with py311-ubuntu	9m 36s
Parallel tests with py314-ubuntu, interpreted	27m 5s
Test suite with py314-windows-64	29m 59s
Test suite with py314-ubuntu, mypyc-compiled	16m 48s
Test suite with py314t-ubuntu, mypyc-compiled	17m 48s
Parallel tests with py314-ubuntu, mypyc-compiled	27m 41s
Test suite with py310-ubuntu, mypyc-compiled	16m 50s
Test suite with py313-ubuntu, mypyc-compiled	15m 45s
mypyc runtime tests with py313-macos	5m 7s
Parallel tests with py314-windows-64, interpreted	10m 57s
mypyc runtime tests with py310-ubuntu	6m 37s
Type check our own code (py310-windows-64)	2m 6s
Formatting and code style with Black + ruff	1m 46s
Type check our own code (py310-ubuntu)	1m 12s
	3h 29m 17s

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