message: Update event attributes for test (_contract_address)
diff: @@ -722,7 +722,10 @@ mod tests {
  let id = res.messages[0].id;
  let event = Event {
  ty: "message".into(),
  - attributes: vec![attr("contract_address", account)],
  + attributes: vec![Attribute {
  + key: "_contract_address".to_string(),
  + value: account.into(),
  + }],
  };
  // which creates a reflect account. here we get the callback
  let response = Reply {
  