Update messaging attributes

[HadeelPH]

This func message.updateAttribues(attributes:)  return error message that the attributes too long. We've discovered that, although the documentation we've reviewed (https://www.twilio.com/docs/conversations/attributes) states that the JSON file in the message attributes can be up to 16KB, we're only able to send message attributes JSON of about 6-7KB for each message.
Have there been any changes to the maximum size of message attributes JSON recently?