fix: remove whitespace from blank lines in test file

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

ldai/testing/test_model_config.py

@@ -307,21 +307,21 @@ def test_model_initial_config_enabled(ldai_client: LDAIClient):
 
 def test_config_method_tracking(ldai_client: LDAIClient):
     from unittest.mock import Mock
-    
+
     mock_client = Mock()
     mock_client.variation.return_value = {
         '_ldMeta': {'enabled': True, 'variationKey': 'test-variation', 'version': 1},
         'model': {'name': 'test-model'},
         'provider': {'name': 'test-provider'},
         'messages': []
     }
-    
+
     client = LDAIClient(mock_client)
     context = Context.create('user-key')
     default_value = AIConfig(enabled=False, model=ModelConfig('fake-model'), messages=[])
-    
+
     config, tracker = client.config('test-config-key', context, default_value)
-    
+
     mock_client.track.assert_called_once_with(
         '$ld:ai:config:function:single',
         context,