[Fix] : fix HyDE query bug

Author: seungwon2

genai/aws-gen-ai-kr/utils/rag_summit.py

@@ -605,6 +605,8 @@ def _get_hyde_response(query, prompt, llm_text):
             print("\n")
             print("===== HyDE Answers =====")
             print(hyde_answers)
+            
+        augmentation = hyde_answers[1]
 
         return similar_docs