Development: improve test portability (#12187)

* Fix: improve test portability

* Make settings always consistent

* Make a few more tests deterministic wrt settings

* Dont pollute settings for this one

* Fix timezone issue with mail parser

* Update test_parser.py

* Uh, I guess OCR gives variants for this

---------

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src/paperless/tests/test_adapter.py

@@ -78,11 +78,15 @@ class TestCustomAccountAdapter(TestCase):
             adapter = get_adapter()
 
             # Test when PAPERLESS_URL is None
-            expected_url = f"https://foo.org{reverse('account_reset_password_from_key', kwargs={'uidb36': 'UID', 'key': 'KEY'})}"
-            self.assertEqual(
-                adapter.get_reset_password_from_key_url("UID-KEY"),
-                expected_url,
-            )
+            with override_settings(
+                PAPERLESS_URL=None,
+                ACCOUNT_DEFAULT_HTTP_PROTOCOL="https",
+            ):
+                expected_url = f"https://foo.org{reverse('account_reset_password_from_key', kwargs={'uidb36': 'UID', 'key': 'KEY'})}"
+                self.assertEqual(
+                    adapter.get_reset_password_from_key_url("UID-KEY"),
+                    expected_url,
+                )
 
             # Test when PAPERLESS_URL is not None
             with override_settings(PAPERLESS_URL="https://bar.com"):