Bump css-loader from 3.6.0 to 4.2.2 (#14664)

Bump css-loader from 3.6.0 to 4.2.2 (#14664)

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 3.6.0 to 4.2.2.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/css-loader/compare/v3.6.0...v4.2.2)

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