SIENTIAPDE-1273

Refactor Drift class to improve target name handling

- Extracted target name from model configuration in the Drift class for better clarity and maintainability.
- Updated test cases to reflect changes in input data structure, ensuring consistency in target name retrieval.

laborious/workflows/drift.py

@@ -32,6 +32,9 @@ class Drift:
             }
         }
 
+        model_config = input_data['model_config']
+        target_name = model_config['target']
+
         gathering_query = f"""
             SELECT *
             FROM {input_data['schema']}.{input_data['source_table_name']}
@@ -76,7 +79,7 @@ class Drift:
                 'reference_data': reference_data,
                 'model_name': input_data['model_name'],
                 'model_id': input_data['model_id'],
-                'target_name': input_data['target_name'],
+                'target_name': target_name,
                 'drift_metrics': input_data['drift_metrics'],
                 'chunk_period': input_data.get('chunk_period', 'min'),
             },