[Bug Report] Dart Sass - Deprecated methods causing warnings and styling issues.

### Element UI version
2.15.13

### OS/Browsers version
Mac OS / Chrome latest, Arc latest, Firefox latest.

### Vue version
2.7.14

### Reproduction Link
https://github.com/cant-share-cuz-its-a-work-project

### Steps to reproduce
Install vite and set it up. Then have the latest vue 2 project.

Then add element ui and the latest sass version. Then start the project and you will see these issues:
```
node_modules/element-ui/packages/theme-chalk/src/tag.scss 24:12 genTheme()
node_modules/element-ui/packages/theme-chalk/src/tag.scss 127:5 @content
node_modules/element-ui/packages/theme-chalk/src/mixins/mixins.scss 112:7 m()
node_modules/element-ui/packages/theme-chalk/src/tag.scss 126:3 @content
node_modules/element-ui/packages/theme-chalk/src/mixins/mixins.scss 74:5 b()
node_modules/element-ui/packages/theme-chalk/src/tag.scss 94:1 @import
node_modules/element-ui/packages/theme-chalk/src/select.scss 6:9 @import
node_modules/element-ui/packages/theme-chalk/src/pagination.scss 4:9 @import
node_modules/element-ui/packages/theme-chalk/src/index.scss 2:9 @import
src/scss/_colors.scss 13:9 @use
```
### What is Expected?
Sass to properly follow the latest guidelines

### What is actually happening?
Errors are received causing slower compile times and styling issues.