Fix the config's lint error

Author: Michael20070814

configs/quantization/methods/KVQuant/rtn_w_a_pertensor_static_naive_quant_kv.yml

@@ -44,4 +44,4 @@ save:
     save_lightllm_kv_calib: True
     lightllm_kv_cache_name: kv_cache_calib.json
     save_fake: False
-    save_path: /path/to/save/
+    save_path: /path/to/save/