Support Python 3.13

[stoobmmelier]

Python 3.13 got released in October 2024. We should support it

Tasks:

• Resolve warnings and deprecations
• Update dependencies
  • mitmproxy to 11

[stoobmmelier]

openapi-core needs updating - python-openapi/openapi-core#994

[stoobmmelier]

The final task is to upgrade mitmproxy to a newer version to further support Python 3.13

[Jvlythical]

@stoobmmelier Do you think we could support Python 3.14?