[Bug Report] input输入框同时配置了clearable,maxlength,show-word-limit后所输入的内容会和清除图标或者字数提示区域重叠

### Element UI version
2.15.13

### OS/Browsers version
windows11/Chrome 114.0.5735.199

### Vue version
2.7.14

### Reproduction Link
https://codepen.io/TOM-LILI/pen/eYQGvKL

### Steps to reproduce
input输入框同时配置了clearable,maxlength,show-word-limit后所输入的内容会和清除图标或者字数提示区域重叠

### What is Expected?
两个配置全开启后,对输入内容不产生遮挡

### What is actually happening?
两个配置全开启后,对输入内容产生遮挡,padding-right不会动态改变