fix: use the correct buffer when sending auth message

Author: rustybee42

shared/src/conn/outgoing.rs

@@ -137,7 +137,7 @@ impl Pool {
 
                             stream
                                 .as_mut()
-                                .write_all(&buf[0..msg_len])
+                                .write_all(&auth_buf[0..msg_len])
                                 .await
                                 .with_context(err_context)?;