try testing and building for 3.12

[samuelcolvin]

After seeing pydantic/pydantic#5849.

Will probably need at least the pytest warning ignores.

Muted:

• utcfromtimestamp() is deprecated in Python 3.12 stub42/pytz#105
• [Python 3.12] Assertion rewriting triggers DeprecationWarning pytest-dev/pytest#10977

[codspeed-hq]

CodSpeed Performance Report

Merging #629 will not alter performances

_{Comparing test-build-3.12 (475162a) with main (d45cc57)}

Summary

✅ 125 untouched benchmarks

[art049]

@samuelcolvin thanks for reporting this, we're working on a fix.

[art049]

@samuelcolvin It's fixed. New comments are working as expected. We will update old invalid messages ASAP.

[samuelcolvin]

thanks so much.

[codecov-commenter]

Codecov Report

Merging #629 (475162a) into main (d45cc57) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #629   +/-   ##
=======================================
  Coverage   93.63%   93.63%           
=======================================
  Files          99       99           
  Lines       13911    13911           
  Branches       25       25           
=======================================
  Hits        13026    13026           
  Misses        879      879           
  Partials        6        6           

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[samuelcolvin]

waiting for python/cpython#105042