Release v13.0.0

2025/03/17 Version 13.0.0

• Type checking improvements
  • Introduce overloads for ee.on
  • Add None return type for functions as appropriate
  • Type self as Any in all methods
  • Local and CI tasks for type checking with mypy
  • mypy type checking passes
  • pyright type checking passes
• Addition of mypy to development dependencies
• Removed conditional import of iscoroutine
  • This was implemented to support Python 3.3, which was dropped long ago
• Removed type stub for twisted.python.Failure
  • This was to address a typing issue in unsupported versions of Twisted
• Export Handler type in pyee/__init__.py