test_simple_dispatch fails on Python 3.12

[mweinelt]

Describe the bug

Running the test suite on Python 3.12 fails the test_simple_dispatch test.

Error log

_____________________________ test_simple_dispatch _____________________________

    async def test_simple_dispatch():
        dispatched_msg1 = None
        dispatched_msg2 = None
    
        async def dispatch_func1(message: bytes) -> None:
            nonlocal dispatched_msg1
            dispatched_msg1 = message
    
        def dispatch_func2(message: bytes) -> None:
            nonlocal dispatched_msg2
            dispatched_msg2 = message
    
        dispatcher = MessageDispatcher[int, bytes]()
        dispatcher.listen_to(1, dispatch_func1)
        dispatcher.listen_to(2, dispatch_func2)
    
        await asyncio.wait_for(asyncio.gather(*dispatcher.dispatch(1, b"123")), 5.0)
        assert dispatched_msg1 == b"123"
        assert dispatched_msg2 is None
    
        dispatched_msg1 = None
    
        await asyncio.wait_for(asyncio.gather(*dispatcher.dispatch(2, b"456")), 5.0)
        assert dispatched_msg1 is None
>       assert dispatched_msg2 == b"456"
E       AssertionError: assert None == b'456'

tests/core/test_protocol.py:163: AssertionError

How to reproduce the bug?

Run the testsuite von Python 3.12.

What is expected behavior?

It should pass, same as on Python 3.11.

Operating System

Linux

Python

Other

pyatv

0.14.5

Device

n/a

Additional context

n/a