fix: Update OpenAIApi.cs for chunks incomplete bug

Author: SebastianBlandon

Runtime/OpenAIApi.cs

@@ -112,8 +112,8 @@ private async void DispatchRequest<T>(string path, string method, Action<List<T>
                 request.method = method;
                 request.SetHeaders(Configuration, ContentType.ApplicationJson);
 
-                var asyncOperation = request.SendWebRequest();
-
+                request.SendWebRequest();
+                bool isDone = false;
                 do
                 {
                     List<T> dataList = new List<T>();
@@ -122,10 +122,9 @@ private async void DispatchRequest<T>(string path, string method, Action<List<T>
                     foreach (string line in lines)
                     {
                         var value = line.Replace("data: ", "");
-                        
-                        if (value.Contains("[DONE]")) 
+                        if (value.Contains("stop")) 
                         {
-                            onComplete?.Invoke();
+                            isDone = true;
                             break;
                         }
 
@@ -145,7 +144,7 @@ private async void DispatchRequest<T>(string path, string method, Action<List<T>
 
                     await Task.Yield();
                 }
-                while (!asyncOperation.isDone && !token.IsCancellationRequested);
+                while (!isDone);
 
                 onComplete?.Invoke();
             }