fix: pypi dev status classifier

Author: ivelin

src/setup.cfg

@@ -9,7 +9,7 @@ long_description_content_type = text/markdown
 url = https://github.com/ambianic/peerjs-python
 license = Apache Software License 2.0
 classifiers =
-Development Status :: Alpha
+Development Status :: 4 - Beta
 Programming Language :: Python :: 3
 OSI Approved :: Apache Software License
 Operating System :: OS Independent