Tests

Use new Github actions ARM runners for tests #14544

Job	Run time
Test mypyc suite with 32-bit Python	4m 16s
Test suite with py39-ubuntu, mypyc-compiled	4m 13s
Test suite with py39-windows-64	4m 3s
Test suite with py310-ubuntu	4m 16s
Test suite with py311-ubuntu, mypyc-compiled	4m 14s
Test suite with py312-ubuntu, mypyc-compiled	4m 14s
Test suite with py313-ubuntu, mypyc-compiled	5s
mypyc runtime tests with py39-macos	4m 9s
Type check our own code (py39-ubuntu)	2m 3s
Type check our own code (py39-windows-64)	2m 38s
Formatting and code style with Black + ruff	1m 39s
	35m 50s

Provide feedback