message: fix flaky integration test for replication promotion
diff: @@ -499,7 +499,7 @@ mod replica_test {
  let builder = TestConfig::builder()
  .followers(1_u16)
  .base_port(13050_u16)
  - .generate("replication2_new");
  + .generate("replication2_promote");
  let (leader_gctx, leader_replica) = builder.leader_replica().await;
  assert_eq!(leader_replica.leo(), 0);
  