Upload image for message sending

curl --request POST \
  --url https://api.wazapin.com/v1/messages/uploads/image \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: multipart/form-data' \
  --form file='@example-file'

{
  "data": {
    "content_type": "<string>",
    "file_name": "<string>",
    "media_url": "<string>",
    "size_bytes": 123
  }
}