Tests

[mypyc] feat: new primitive for `int.to_bytes` #20179

Job	Run time
Test mypyc suite with 32-bit Python	3m 30s
Test suite with py311-ubuntu	9m 51s
Test suite with py314t-ubuntu, mypyc-compiled	32s
Test suite with py310-ubuntu, mypyc-compiled	28s
Test suite with py312-ubuntu	6m 17s
mypyc runtime tests with py313-macos	35s
Test suite with py314-ubuntu, mypyc-compiled	27s
Test suite with py313-ubuntu, mypyc-compiled	29s
Type check our own code (py310-ubuntu)	32s
Test suite with py314-windows-64	15m 20s
mypyc runtime tests with py310-ubuntu	40s
Formatting and code style with Black + ruff	1m 57s
Parallel tests with py314-ubuntu, mypyc-compiled	38s
Type check our own code (py310-windows-64)	1m 15s
Parallel tests with py314-ubuntu, interpreted	23m 24s
	1h 5m 55s

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