feat: support python 3.13

[bitwise-constructs]

What I did

Adds in support for Python 3.13

fixes: 2392
Fixes: APE-1855

How I did it

How to verify it

Checklist

• All changes are completed
• New test cases have been added
• Documentation has been updated

[bitwise-constructs]

failing test should be fixed with jcrist/msgspec#711

[antazoey]

Another random change to remember:

• Update black's language config in pyproject.toml file

[pcaversaccio]

failing test should be fixed with jcrist/msgspec#711

He hasn't released it yet and people are asking for it: jcrist/msgspec#777. If it takes too long, would you guys be willing to do something like:

msgspec @ git+https://github.com/jcrist/msgspec@595c33c4a71c6d0c539b82233982a65819e240c

The reason why I ask is that I migrate snekmate to Python 3.13 here: pcaversaccio/snekmate#291.

[bitwise-constructs]

@pcaversaccio instead I'm just going to remove the msgspec dep. will definitely get this out in next release