动画节点，在hightlight 时设置透明度显示异常

### 问题描述

上述是显示透明度异常情况
下图是为使用透明度情况

### 重现链接

https://codesandbox.io/p/sandbox/quizzical-allen-lq9fmy?file=%2Findex.js%3A68%2C23

### 重现步骤

同上

### 预期行为

希望设置透明度的动画能正常透明度展示

### 平台

- 操作系统: [macOS, Windows, Linux, React Native ...]
- 网页浏览器: [Google Chrome, Safari, Firefox]
- G6 版本: [4.5.1 ... ]

### 屏幕截图或视频（可选）

_No response_

### 补充说明（可选）

_No response_

Start with the linked CodeSandbox and inspect index.js around line 68, where the highlight behavior is configured. Compare the opacity animation with the non-animated opacity example and determine why the displayed transparency differs. Done when highlighting renders the configured opacity correctly; verify the result in the reproduction sandbox.

Written by the indexing model from the issue text.