pytest-asyncio DeprecationWarning for event_loop

[korikuzma]

DeprecationWarning: The event_loop fixture provided by pytest-asyncio has been redefined in
tests/conftest.py:16
Replacing the event_loop fixture with a custom implementation is deprecated
and will lead to errors in the future.
If you want to request an asyncio event loop with a scope other than function
scope, use the "scope" argument to the asyncio mark when marking the tests.
If you want to return different types of event loops, use the event_loop_policy
fixture.