Update the submodule to latest

Le Yao · Le Yao · commit c14211039bcd · 2023-09-05T11:04:23.000+08:00
Signed-off-by: Le Yao &lt;le.yao@intel.com&gt;
diff --git a/fastchat b/fastchat
@@ -1 +1 @@
-Subproject commit effc20968c4dc48e1e525efd18873a6ef60a72c6
+Subproject commit 478cc333d31799e02e33e3e71474408384e173c8
