🐛 [BUG]水波图调用changeData时, X轴的波浪动画会有闪烁

### 🐛 Bug description [Please make everyone to understand it]
水波图调用changeData时, 如果percent值变化较小,X轴的波浪移动会有明显的闪烁

* _Required_ **Link to minimal reproduction**:

### 📷 Step to reproduce
[官方示例就能看到这个问题](https://g2plot.antv.antgroup.com/zh/examples/progress-plots/liquid/#style)
### 🏞 Expected result
期望在调用changeData时, 波浪在X轴的移动保持连贯, 而不是改变到初始值, 再偏移回来. 会有明显的动画闪烁
### 🚑 Any additional [like screenshots]

* **G2Plot Version**:
* **Platform**:

Start with the official liquid chart example linked in the issue and trace the changeData animation path for small percent changes. Reproduce the X-axis wave flicker, then verify that the wave moves continuously without resetting to its initial position before shifting back.

Written by the indexing model from the issue text.