Update classifiers prior to v0.4.5 release (#104)

Author: ianthomas23

setup.py

@@ -65,6 +65,7 @@
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Operating System :: OS Independent",
         "Intended Audience :: Science/Research",
         "Intended Audience :: Developers",