Removes support for Python 3.8 and lower from the code base

src/paperless_tika/tests/test_tika_parser.py

@@ -1,13 +1,9 @@
 import datetime
 import os
+import zoneinfo
 from pathlib import Path
 from unittest import mock
 
-try:
-    import zoneinfo
-except ImportError:
-    from backports import zoneinfo
-
 from django.test import TestCase
 from django.test import override_settings
 from httpx import Request