Python 3.13 support

[philippedistributive]

Issue type

Bug

How did you install PythonMonkey?

None

OS platform and distribution

No response

Python version (python --version)

No response

PythonMonkey version (pip show pythonmonkey)

No response

Bug Description

Make sure we build and run fine on the upcoming python 3.13

Standalone code to reproduce the issue

No response

Relevant log output or backtrace

No response

Additional info if applicable

No response

What branch of PythonMonkey were you developing on? (If applicable)

No response