fix: add trove classifier for python 3.11 (#971)

Author: parthea

setup.py

@@ -81,6 +81,7 @@
  "Programming Language :: Python :: 3.8",
  "Programming Language :: Python :: 3.9",
  "Programming Language :: Python :: 3.10",
+ "Programming Language :: Python :: 3.11",
  "Operating System :: OS Independent",
  "Topic :: Internet",
  ],