message: [telemetry] add install_manifest_mode
diff: @@ -879,6 +879,8 @@ namespace vcpkg::Install
  ? Dependencies::UnsupportedPortAction::Warn
  : Dependencies::UnsupportedPortAction::Error;
  + LockGuardPtr<Metrics>(g_metrics)->track_feature("install_manifest_mode", paths.manifest_mode_enabled());
  +
  if (paths.manifest_mode_enabled())
  {
  bool failure = false;
  