nixosTests.limine.secureBoot: fix secure boot check (#454563)

      boot.loader.limine.secureBoot.enable = true;

      boot.loader.limine.secureBoot.createAndEnrollKeys = true;

      boot.loader.timeout = 0;

      environment.systemPackages = [ pkgs.mokutil ];

    };

  testScript = ''

    machine.start()

    assert "Secure Boot: enabled (user)" in machine.succeed("bootctl status")

    assert "SecureBoot enabled" in machine.succeed("mokutil --sb-state")

  '';

}