Tests

Try using pinned version in a better way #21261

Job	Run time
Test mypyc suite with 32-bit Python	3m 24s
Test suite with py314-ubuntu, mypyc-compiled	15m 20s
Test suite with py314-windows-64	17m 13s
mypyc runtime tests with py310-ubuntu	6m 42s
Test suite with py314t-ubuntu, mypyc-compiled	49s
Parallel tests with py314-windows-64, interpreted	13m 57s
Type check our own code (py310-ubuntu)	2m 36s
Parallel tests with py314-ubuntu, mypyc-compiled	17m 22s
Test suite with py310-ubuntu, mypyc-compiled	15m 40s
Type check our own code (py310-windows-64)	4m 1s
mypyc runtime tests with py313-macos	6m 11s
Test suite with py311-ubuntu	9m 16s
Parallel tests with py314-ubuntu, interpreted	17m 20s
Test suite with py312-ubuntu	9m 50s
Formatting and code style with Black + ruff	1m 54s
Test suite with py313-ubuntu, mypyc-compiled	14m 56s
	2h 36m 31s

Provide feedback