Describe the bug

Using the aiohttp web server, I struggle with asyncio.CancelledError() when a client disconnect for some time.
I shielded what needed to be but it has its limits.
Today I found this old PR:
#4080

It looks like my issue.
If I understand correctly asyncio.CancelledError() was fixed at the beginning of v3.7.0 (1th October 2019).
But I still have frequent asyncio.CancelledError() in my server.

I have investigated a bit more and I find another PR, at the end of v3.7.0 (just before v3.7.0b0 I think) that for me re-introduce the issue:
#4415

For me the wrong code is the following:

        if self._task_handler is not None:
            self._task_handler.cancel()

It was removed by #4080 (and with all the documentation regarding this issue) but re-introduced silently by #4415.

I'm clearly not an expert so I'm not sure of what I'm saying, but does it make sense for you?

To Reproduce

NA

Expected behavior

NA

Logs/tracebacks

NA

Python Version

3.10.4

aiohttp Version

3.8.1

multidict Version

5.1.0

yarl Version

1.6.3

OS

Fedora 35

Related component

Server

Additional context

No response

Code of Conduct

• I agree to follow the aio-libs Code of Conduct