Breaking change: New `data` object in error codes

In API versions 2024-07 and later, error codes will contain the data object. This change applies to all errors, even those with null values.

{
  "data": {
    "me": null
  },
  "error_message": "User unauthorized to perform action",
  "error_code": "UserUnauthorizedException",
  "error_data": {},
  "status_code": 403,
  "account_id": 123456
}