Test failure with dj-database-url == 2.2.0

[mgorny]

Upon upgrading dj-database-url to 2.2.0, I'm getting the following test failure:

$ PYTHONPATH=. django-cadmin test 
Found 70 test(s).
Creating test database for alias 'default'...
System check identified no issues (0 silenced).
...........................F../tmp/django-configurations/.venv/lib/python3.12/site-packages/dj_email_url.py:89: UserWarning: `smtps` scheme will be deprecated in a future version, use `submission` instead
  warnings.warn(
........................................
======================================================================
FAIL: test_database_url_value (tests.test_values.ValueTests.test_database_url_value)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/django-configurations/tests/test_values.py", line 376, in test_database_url_value
    self.assertEqual(value.setup('DATABASE_URL'), {
AssertionError: {'default': {'NAME': ':memory:', 'USER': '', 'PASSWORD'[151 chars]e3'}} != {'default': {'CONN_HEALTH_CHECKS': False, 'CONN_MAX_AGE[113 chars] ''}}
  {'default': {'CONN_HEALTH_CHECKS': False,
               'CONN_MAX_AGE': 0,
-              'DISABLE_SERVER_SIDE_CURSORS': False,
               'ENGINE': 'django.db.backends.sqlite3',
               'HOST': '',
               'NAME': ':memory:',
               'PASSWORD': '',
               'PORT': '',
               'USER': ''}}

----------------------------------------------------------------------
Ran 70 tests in 2.463s

FAILED (failures=1)
Destroying test database for alias 'default'...