Support for python 3.13

[idan3]

Couldn't find in the release changelog if there is current support for Python 3.13 in one of the apscheduler versions.

[agronholm]

I guess the PyPI classifiers weren't enough of a clue?

[agronholm]

Or the CI workflow: https://github.com/agronholm/apscheduler/blob/3.x/.github/workflows/test.yaml#L13

[agronholm]

Or the Tox configuration: https://github.com/agronholm/apscheduler/blob/3.x/pyproject.toml#L134

[idan3]

You are right. I can see APScheduler 3.11.0 is compatible (the Lowest compatible version). Thank you!