[Conductor] Panic when the connection pool is disconnected (#34007)

GitOrigin-RevId: 0f934dbeeb51a92ee81515b98e6f79f16779c6a0

Author: jordanhunt22

crates/mysql/src/connection.rs

@@ -91,10 +91,12 @@ where
                     let e = e.into();
                     if e.chain().any(|cause| matches!(
                         cause.downcast_ref(),
-                        Some(
-                            mysql_async::Error::Driver(DriverError::PoolDisconnected)
-                            | mysql_async::Error::Io(_)
-                        )
+                        Some(mysql_async::Error::Driver(DriverError::PoolDisconnected))
+                    )) {
+                        panic!("{}", format!("MySQL pool disconnected: {e:#}"));
+                    } else if e.chain().any(|cause| matches!(
+                        cause.downcast_ref(),
+                        Some(mysql_async::Error::Io(_))
                     )) {
                         Err(e.context(ErrorMetadata::operational_internal_server_error()))
                     } else {