[Bug Report] After entering Chinese in the input box and then long-pressing the space bar, it will be converted into English

### Element UI version
2.15.13

### OS/Browsers version
Chrome 114.0.5735.199

### Vue version
2.7.14

### Reproduction Link
https:element.eleme.io/#/zh-CN/component/input

### Steps to reproduce
After entering text in the input box and then long-pressing the space bar, the text will be changed, especially Chinese will be converted into English
you can enter 你好 in the input,then you long-pressing the space bar,你好 will be change to hellow.

### What is Expected?
no change

### What is actually happening?
change