Deprecated usage of utcfromtimestamp() in 3.x release stream

[sethmlarson]

Describe the bug

Receiving the following deprecation when using the latest pre-release of Python 3.12. See: https://docs.python.org/3.12/library/datetime.html#datetime.datetime.utcfromtimestamp

To Reproduce

Import aiohttp on Python 3.12

Expected behavior

No DeprecationWarning

Logs/tracebacks

ImportError while loading conftest '/Users/runner/work/truststore/truststore/tests/conftest.py'.
tests/conftest.py:11: in <module>
    from aiohttp import web
.nox/test/lib/python3.12/site-packages/aiohttp/__init__.py:6: in <module>
    from .client import (
.nox/test/lib/python3.12/site-packages/aiohttp/client.py:73: in <module>
    from .cookiejar import CookieJar
.nox/test/lib/python3.12/site-packages/aiohttp/cookiejar.py:36: in <module>
    class CookieJar(AbstractCookieJar):
.nox/test/lib/python3.12/site-packages/aiohttp/cookiejar.py:57: in CookieJar
    MAX_32BIT_TIME = datetime.datetime.utcfromtimestamp(2**31 - 1)
E   DeprecationWarning: datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.fromtimestamp(timestamp, datetime.UTC).

Python Version

$ python --version
3.12.0rc1

aiohttp Version

$ python -m pip show aiohttp
Name: aiohttp
Version: 3.8.5
Summary: Async http client/server framework (asyncio)
Home-page: https://github.com/aio-libs/aiohttp
Author: 
Author-email: 
License: Apache 2
Location: /home/sethmlarson/truststore/venv/lib/python3.11/site-packages
Requires: aiosignal, async-timeout, attrs, charset-normalizer, frozenlist, multidict, yarl
Required-by:

multidict Version

$ python -m pip show multidict
Name: multidict
Version: 6.0.4
Summary: multidict implementation
Home-page: https://github.com/aio-libs/multidict
Author: Andrew Svetlov
Author-email: andrew.svetlov@gmail.com
License: Apache 2
Location: /home/sethmlarson/truststore/venv/lib/python3.11/site-packages
Requires: 
Required-by: aiohttp, yarl

yarl Version

$ python -m pip show yarl
Name: yarl
Version: 1.9.2
Summary: Yet another URL library
Home-page: https://github.com/aio-libs/yarl/
Author: Andrew Svetlov
Author-email: andrew.svetlov@gmail.com
License: Apache-2.0
Location: /home/sethmlarson/truststore/venv/lib/python3.11/site-packages
Requires: idna, multidict
Required-by: aiohttp

OS

Ubuntu 22.04

Related component

Server, Client

Additional context

No response

Code of Conduct

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

[Dreamsorcerer]

#7302

[sethmlarson]

Ah, so this has been backported to 3.x but hasn't been released yet. Thank you!