* Drop support for Python 3.9.
* Add support for Python 3.14.
* Move all supported package metadata into pyproject.toml.
* Remove no longer necessary setuptools runtime dependency.
* Replace pkg_resources namespace with PEP 420 native namespace.
* Add preliminary support for Python 3.14.
* Drop support for Python 3.8.
* Adjust minimal required version of zope.security test dependency to 7.3.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-zope.proxy?expand=0&rev=44
