Fixed #34233 -- Dropped support for Python 3.8 and 3.9.

tests/admin_widgets/tests.py

@@ -1,15 +1,11 @@
 import gettext
 import os
 import re
+import zoneinfo
 from datetime import datetime, timedelta
 from importlib import import_module
 from unittest import skipUnless
 
-try:
-    import zoneinfo
-except ImportError:
-    from backports import zoneinfo
-
 from django import forms
 from django.conf import settings
 from django.contrib import admin