* Remove deprecated imports:
`pyee.BaseEventEmitter`
`pyee.AsyncIOEventEmitter`
`pyee.TwistedEventEmitter`
`pyee.ExecutorEventEmitter`
`pyee.TrioEventEmitter`
* Add `PyeeError` which inherits from `PyeeException`, and use
throughout
* Deprecate direct use of `PyeeException`
* Add project URLs to pyproject.toml and PyPI
* Use ActionLint v2
* Fix GitHub release action
Refactor developer setup to use a local virtualenv
* Fix Python 2.7 in tox
- Fix LICENSE url
- Initial release of python-pyee 3.0.3
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-pyee?expand=0&rev=25
