fix: 更新 Consent 的回调兼容性

Runtime/GuruConsent/Runtime/Script/Consent/GuruConsent.cs

@@ -104,7 +104,12 @@ namespace Guru
                                     message = jMsg.ToString();
                                 }
                                 Debug.Log($"{Tag} ---  status: {status}    msg: {message}");
-                                onCompleteHandler?.Invoke(status);
+                                GuruSDKCallback.RemoveCallback(OnSDKCallback);
+                                if (onCompleteHandler != null)
+                                {
+                                    onCompleteHandler.Invoke(status);
+                                    onCompleteHandler = null;
+                                }
                                 return;
                             }
                         }