Update PyPI trove classifiers

- Add Django 4.2, 5.0
- Add Python 3.12

Author: medmunds

pyproject.toml

@@ -37,6 +37,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "License :: OSI Approved :: BSD License",
     "Topic :: Communications :: Email",
     "Topic :: Software Development :: Libraries :: Python Modules",
@@ -47,7 +48,8 @@ classifiers = [
     "Framework :: Django :: 3.2",
     "Framework :: Django :: 4.0",
     "Framework :: Django :: 4.1",
-    # not yet registered: "Framework :: Django :: 4.2",
+    "Framework :: Django :: 4.2",
+    "Framework :: Django :: 5.0",
     "Environment :: Web Environment",
 ]