Update classifiers

Author: tkrapp

pyproject.toml

@@ -9,13 +9,17 @@ classifiers = [
   "Environment :: Web Environment",
   "Framework :: Django",
   "Framework :: Django :: 3.0",
+  "Framework :: Django :: 3.1",
+  "Framework :: Django :: 3.2",
+  "Framework :: Django :: 4.0",
   "Intended Audience :: Developers",
   "Operating System :: OS Independent",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Topic :: Software Development :: Libraries :: Python Modules",
+  "Development Status :: 3 - Alpha"
 ]
 dependencies = ["django >= 3.0"]
 dynamic = ["version", "description"]