Tests

Bump ast-serialize again to get platform assert fix (#21371) #22031

Job	Run time
Test mypyc suite with 32-bit Python	11m 20s
Test suite with py314-windows-64	32m 11s
Test suite with py311-ubuntu	9m 25s
Test suite with py314-ubuntu, mypyc-compiled	15m 5s
Test suite with py314t-ubuntu, mypyc-compiled	18m 19s
Parallel tests with py314-ubuntu, interpreted	26m 19s
Type check our own code (py310-ubuntu)	1m 12s
Parallel tests with py314-ubuntu, mypyc-compiled	28m 47s
Formatting and code style with Black + ruff	1m 57s
Type check our own code (py310-windows-64)	2m 3s
Test suite with py312-ubuntu	9m 46s
Test suite with py313-ubuntu, mypyc-compiled	16m 29s
mypyc runtime tests with py310-ubuntu	7m 7s
Test suite with py310-ubuntu, mypyc-compiled	16m 40s
mypyc runtime tests with py313-macos	6m 6s
Parallel tests with py314-windows-64, interpreted	12m 43s
	3h 35m 29s

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