chore(deps): bump postcss, autoprefixer, css-loader, postcss-loader, …

…stylelint, stylelint-order and stylelint-selector-bem-pattern

Bumps [postcss](https://github.com/postcss/postcss) to 8.4.31 and updates ancestor dependencies [postcss](https://github.com/postcss/postcss), [autoprefixer](https://github.com/postcss/autoprefixer), [css-loader](https://github.com/webpack-contrib/css-loader), [postcss-loader](https://github.com/webpack-contrib/postcss-loader), [stylelint](https://github.com/stylelint/stylelint), [stylelint-order](https://github.com/hudochenkov/stylelint-order) and [stylelint-selector-bem-pattern](https://github.com/simonsmith/stylelint-selector-bem-pattern). These dependencies need to be updated together.


Updates `postcss` from 7.0.36 to 8.4.31
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@7.0.36...8.4.31)

Updates `autoprefixer` from 9.0.0 to 10.4.16
- [Release notes](https://github.com/postcss/autoprefixer/releases)
- [Changelog](https://github.com/postcss/autoprefixer/blob/main/CHANGELOG.md)
- [Commits](postcss/autoprefixer@9.0.0...10.4.16)

Updates `css-loader` from 2.0.0 to 6.8.1
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v2.0.0...v6.8.1)

Updates `postcss-loader` from 3.0.0 to 7.3.3
- [Release notes](https://github.com/webpack-contrib/postcss-loader/releases)
- [Changelog](https://github.com/webpack-contrib/postcss-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/postcss-loader@v3.0.0...v7.3.3)

Updates `stylelint` from 13.9.0 to 15.10.3
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@13.9.0...15.10.3)

Updates `stylelint-order` from 2.0.0 to 6.0.3
- [Release notes](https://github.com/hudochenkov/stylelint-order/releases)
- [Changelog](https://github.com/hudochenkov/stylelint-order/blob/master/CHANGELOG.md)
- [Commits](hudochenkov/stylelint-order@2.0.0...6.0.3)

Updates `stylelint-selector-bem-pattern` from 2.1.0 to 3.0.1
- [Changelog](https://github.com/simonsmith/stylelint-selector-bem-pattern/blob/master/CHANGELOG.md)
- [Commits](simonsmith/stylelint-selector-bem-pattern@2.1.0...3.0.1)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
- dependency-name: autoprefixer
  dependency-type: direct:development
- dependency-name: css-loader
  dependency-type: direct:development
- dependency-name: postcss-loader
  dependency-type: direct:development
- dependency-name: stylelint
  dependency-type: direct:development
- dependency-name: stylelint-order
  dependency-type: direct:development
- dependency-name: stylelint-selector-bem-pattern
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>