feat: add support for Python 3.13

[cofin]

Description

This PR implements support for Python 3.13.

Note

• Python 3.8 continues to be supported with the existing msgspec implementation, while all other versions prefer the pre-built litestar wheels.
• There are no Python 3.13 prebuilt wheels for psycopg[binary]. If you rely on this for development, you'll need to have the postgres development libraries installed
• picologging does not currently support Python 3.13. These tests are skipped automatically.
• uses an updated pytest-asyncio. Once the branch has been merged upstream, we can remove this test dependency.
• Running make install will still install using Python 3.12. This is done to ensure we don't get additional bug reports due to build dependencies missing. If you want to use python 3.13, run uv sync --all-extras --dev --python 3.13

Closes

[cofin]

Breaking off a few smaller PRs that are unrelated but caused errors based on linting and environment updates.

#3918 #3917 #3916

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.34%. Comparing base (2fb6f6b) to head (592ad1e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3850   +/-   ##
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  Coverage   98.34%   98.34%           
=======================================
  Files         347      347           
  Lines       15727    15727           
  Branches     1738     1738           
=======================================
  Hits        15467    15467           
  Misses        124      124           
  Partials      136      136           

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[cofin]

For reference on the pytest-asyncio issues, please see this PR

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Documentation preview will be available shortly at https://litestar-org.github.io/litestar-docs-preview/3850