Forgot my own advice ! DONOT upgrade immediately.

function ExecuteScript(strId) {
  switch (strId) {
    case "5iJndnVgyvU": // trigger on timeline starts
      Script1();
      break;
    case "6NRem5OttDF": // trigger emphasize animation
      Script2();
      break;
  }
}

window.InitExecuteScripts = function () {
  var player = GetPlayer();
  var object = player.object;
  var addToTimeline = player.addToTimeline;
  var setVar = player.SetVar;
  var getVar = player.GetVar;

  window.Script1 = function () {
    console.log("hallo world");
  };

  window.Script2 = function () {
    const target = object("60g35ET153K");
    const duration = 750;
    const easing = "ease-in-out";
    const id = "6l0E5nUIcp0";
    const growAmount = 0.2;

    player.addForTriggers(
      id,
      target.animate([{ scale: `${1 + growAmount}` }], {
        fill: "forwards",
        duration,
        easing,
      })
    );
  };
};