lint: Add final newline

Author: garlontas

tests/_loaders/test_csv_loader.py

@@ -85,4 +85,4 @@ def test_csv_loader_from_string(self):
 
     def test_csv_loader_from_empty_string(self):
         """Test CSV loading from an empty string."""
-        self.assertRaises(StopIteration, next, csv("", read_from_src=True))
+        self.assertRaises(StopIteration, next, csv("", read_from_src=True))