Allow an easy/compatible way to get a second fixture

[flying-sheep]

For def test_thing(array_type, target_array_type).

This doesn‘t look great:

@pytest.mark.array_type(skip=NON_BASIC_FLAGS)
@pytest.mark.parametrize(
    "new_array_type", [t for t in SUPPORTED_TYPES if not (t.flags & NON_BASIC_FLAGS)]
)
def test_setter_view(
    array_type: ArrayType[np.ndarray | CSMatrix | CSArray],
    new_array_type: ArrayType[np.ndarray | CSMatrix | CSArray],
) -> None:
    ...