Add support for Python 3.12

[karpetrosyan]

Following encode/httpcore#807 and encode/httpx#2854, we should also add support for Python 3.12.

Thanks to @hugovk

TODO

• Add changelog

[codecov]

Codecov Report

Merging #71 (020f769) into master (befab19) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #71   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files           27        27           
  Lines         1544      1544           
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  Hits          1544      1544           

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[hugovk]

Looks good!

Note there are some new deprecation warnings, they don't need fixing immediately but don't leave it too late:

/home/runner/work/hishel/hishel/tests/_async/test_storages.py:11: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

https://github.com/karosis88/hishel/actions/runs/6236903274/job/16929269582?pr=71#step:7:56

[karpetrosyan]

Looks good!

Note there are some new deprecation warnings, they don't need fixing immediately but don't leave it too late:

/home/runner/work/hishel/hishel/tests/_async/test_storages.py:11: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

https://github.com/karosis88/hishel/actions/runs/6236903274/job/16929269582?pr=71#step:7:56

Thank you so much for the review!