fix: add correct model task

src/rag/llm.py

@@ -13,6 +13,7 @@ def get_chain():
         huggingfacehub_api_token=settings.HUGGINGFACE_TOKEN,
         temperature=settings.MODEL_TEMPERATURE,
         max_new_tokens=settings.MODEL_MAX_TOKENS,
+        task="conversational",
     )
 
     return prompt | llm