was anyio_backend fixture intentionally changed to module-scoped? docs still say function-scoped.

[EmmanuelNiyonshuti]

docs still says anyio_backend fixture is function scoped , when it actually is module scoped!

https://anyio.readthedocs.io/en/stable/testing.html#:~:text=anyio_backend%20fixture%20because%20the%20default%20anyio_backend%20fixture%20is%20function%20scoped%3A

anyio/src/anyio/pytest_plugin.py

Lines 204 to 206 in 64b753b

	@pytest.fixture(scope="module", params=get_available_backends())
	def anyio_backend(request: Any) -> Any:
	return request.param

fixture was last touched in #1021 that PR doesn't seem related to this change though. was this intentional? docs need updating if so, otherwise, its worth reverting?

[EmmanuelNiyonshuti]

Ah, it was updated to module scoped during #435