feat: support test-groups #4507

Job	Run time
Linters (mypy, flake8, etc.)	1m 5s
Get qemu emulated architectures	10s
Test cibuildwheel building pyodide wheels	5m 58s
Test on ubuntu-latest (3.13)	41m 37s
Test on windows-latest (3.13)	44m 45s
Test on macos-13 (3.13)	22m 52s
Test on macos-14 (3.13)	19m 47s
Test on ubuntu-latest (3.8)	41m 7s
Test Linux aarch64 using qemu	25m 36s
Test Linux armv7l using qemu	9m 13s
Test Linux ppc64le using qemu	17m 43s
Test Linux s390x using qemu	20m 5s
	4h 9m 58s

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