fix(tests): Ensure newline at end of file in conftest.py

Author: dugshub

tests/conftest.py

@@ -20,4 +20,4 @@ def pytest_collection_modifyitems(config, items):
         elif "/design/" in str(item.fspath):
             item.add_marker(pytest.mark.design)
         elif "/ui/" in str(item.fspath):
-            item.add_marker(pytest.mark.ui)
+            item.add_marker(pytest.mark.ui)