Tests

[mypyc] Add note about librt.strings thread safety (#21383) #22069

Job	Run time
Test mypyc suite with 32-bit Python	47m 46s
Test suite with py314-ubuntu, mypyc-compiled	16m 17s
Test suite with py312-ubuntu	10m 6s
Parallel tests with py314-windows-64, interpreted	10m 6s
Test suite with py314t-ubuntu, mypyc-compiled	18m 31s
Parallel tests with py314-ubuntu, interpreted	25m 33s
Test suite with py313-ubuntu, mypyc-compiled	16m 15s
Parallel tests with py314-ubuntu, mypyc-compiled	29m 6s
Test suite with py311-ubuntu	9m 40s
mypyc runtime tests with py310-ubuntu	6m 37s
mypyc runtime tests with py313-macos	5m 18s
Type check our own code (py310-windows-64)	1m 53s
Formatting and code style with Black + ruff	1m 49s
Test suite with py314-windows-64	32m 1s
Type check our own code (py310-ubuntu)	1m 11s
Test suite with py310-ubuntu, mypyc-compiled	16m 32s
	4h 8m 41s

Provide feedback