update accuracy embedding endpoint for no wrapper (opea-project#1056)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ChatQnA/benchmark/accuracy/eval_multihop.py

@@ -41,11 +41,11 @@ def get_reranked_documents(self, query, docs, arguments):
             return []
 
     def get_retrieved_documents(self, query, arguments):
-        data = {"text": query}
+        data = {"inputs": query}
         headers = {"Content-Type": "application/json"}
-        response = requests.post(arguments.embedding_endpoint, data=json.dumps(data), headers=headers)
+        response = requests.post(arguments.tei_embedding_endpoint + "/embed", data=json.dumps(data), headers=headers)
         if response.ok:
-            embedding = response.json()["embedding"]
+            embedding = response.json()[0]
         else:
             print(f"Request for embedding failed due to {response.text}.")
             return []