Chore: Change the code formatter to Ruff (#6756)

* Changing the formatting to ruff-format

* Replaces references to black to ruff or ruff format, removes black from dependencies

src/paperless/tests/test_adapter.py

@@ -29,7 +29,6 @@ class TestCustomAccountAdapter(TestCase):
         with context.request_context(request):
             adapter = get_adapter()
             with override_settings(ALLOWED_HOSTS=["*"]):
-
                 # True because request host is same
                 url = "https://example.com"
                 self.assertTrue(adapter.is_safe_url(url))