🐛 [BUG]散点图横坐标为时间时(moment.format("YYYY-MM-DD HH:mm:ss")) 其中HH:mm:ss 会被隐藏掉

### 🐛 Bug description [Please make everyone to understand it]
散点图横坐标为时间时(moment.format("YYYY-MM-DD HH:mm:ss")) 其中HH:mm:ss 会被隐藏掉

> Please provide a link by forking these links [G2Plot](https://codesandbox.io/s/g2plot-issue-template-gzfdq?file=/index.ts) or GitHub repo, a minimal reproduction.
https://codesandbox.io/embed/g2plot-issue-template-forked-iuyj11

* _Required_ **Link to minimal reproduction**:

### 📷 Step to reproduce

### 🏞 Expected result
时间完整显示

### 🚑 Any additional [like screenshots]

* **G2Plot Version**: 任何
* **Platform**:谷歌

Start with the linked CodeSandbox minimal reproduction and inspect how G2Plot renders labels for a time-based scatter-plot x-axis. Reproduce the missing HH:mm:ss text in Google Chrome, then verify that the complete formatted timestamp is visible without changing the expected date format.

Written by the indexing model from the issue text.