🤔 [QUESTION]Slider如何监听变化

### 🐛 Question description
如题

### 💻 Link to minimal reproduction

···
const t1 = new Line("t1", {
data,
padding: "auto",
xField: "Date",
yField: "scales",
xAxis: {
tickCount: 5,
},
slider: {
start: 0.1,
end: 0.5,
},
});
t1.on("slider:change", (event) => {
console.log(event);
});

t1.render();
···
### 🏞 Expected result

### 🚑 Any additional [like screenshots]

* **G2Plot Version：2.4.32**:
* **Platform：macos**:

Start with the provided Line chart reproduction, including the slider configuration and the `slider:change` listener. Check the G2Plot event documentation or relevant slider API entry point to determine the supported usage, then document a confirmed example and expected event payload.

Written by the indexing model from the issue text.