Tests

Bump filelock from 3.20.0 to 3.20.3 #20114

Job	Run time
Test mypyc suite with 32-bit Python	8m 45s
Test suite with py313-ubuntu, mypyc-compiled	15m 31s
Test suite with py314-ubuntu, mypyc-compiled	14m 46s
Test suite with py314-windows-64	27m 13s
Test suite with py310-ubuntu, mypyc-compiled	15m 23s
Test suite with py312-ubuntu	9m 51s
Type check our own code (py310-windows-64)	2m 35s
Parallel tests with py314-ubuntu, interpreted	24m 20s
mypyc runtime tests with py310-ubuntu	5m 35s
mypyc runtime tests with py313-macos	6m 33s
Test suite with py311-ubuntu	9m 19s
Type check our own code (py310-ubuntu)	1m 41s
Test suite with py314t-ubuntu, mypyc-compiled	16m 57s
Formatting and code style with Black + ruff	1m 57s
Parallel tests with py314-ubuntu, mypyc-compiled	29m 28s
	3h 9m 54s

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