Tests

[mypyc] feat: add ascii format fast path #20293

Job	Run time
Test mypyc suite with 32-bit Python	9m 44s
Test suite with py314-windows-64	27m 33s
Test suite with py310-ubuntu, mypyc-compiled	15m 2s
Test suite with py312-ubuntu	10m 9s
Test suite with py313-ubuntu, mypyc-compiled	14m 57s
Test suite with py311-ubuntu	9m 39s
Parallel tests with py314-ubuntu, mypyc-compiled	30m 10s
Type check our own code (py310-ubuntu)	1m 40s
Test suite with py314t-ubuntu, mypyc-compiled	17m 10s
Parallel tests with py314-ubuntu, interpreted	25m 7s
mypyc runtime tests with py313-macos	4m 47s
Test suite with py314-ubuntu, mypyc-compiled	15m 19s
mypyc runtime tests with py310-ubuntu	5m 37s
Formatting and code style with Black + ruff	1m 57s
Type check our own code (py310-windows-64)	2m 27s
	3h 11m 18s

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