message: Fix incorrect cluster InitializePhase type
diff: @@ -917,7 +917,9 @@ void ClusterImplBase::onPreInitComplete() {
  }
  initialization_started_ = true;
  - ENVOY_LOG(debug, "initializing secondary cluster {} completed", info()->name());
  + ENVOY_LOG(debug, "initializing {} cluster {} completed",
  + initializePhase() == InitializePhase::Primary ? "Primary" : "Secondary",
  + info()->name());
  init_manager_.initialize(init_watcher_);
  }
  