message: fix: Change skip_serializing to just be skip.
diff: @@ -35,7 +35,7 @@ pub struct DeviceMessageInfo {
  // We need to store off the original device messages we had passed in, as we
  // may need to include message attributes in earlier versions that are
  // deprecated in later versions.
  - #[serde(skip_serializing)]
  + #[serde(skip)]
  pub original_device_messages: DeviceMessageAttributesMap,
  }
  