add python 3.11 to setup.cfg

fixes pre-commit

Author: Cube707

setup.cfg

@@ -23,6 +23,7 @@ classifiers =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Programming Language :: Python :: Implementation :: CPython
     Topic :: Software Development
     Topic :: Software Development :: User Interfaces
@@ -40,7 +41,7 @@ project_urls =
 packages = find:
 install_requires =
     setuptools>=41.0
-python_requires = >=3.6
+python_requires = >=3.7
 
 [options.packages.find]
 exclude =