Bump css-loader from 6.7.1 to 6.7.2 (#973)

Bump css-loader from 6.7.1 to 6.7.2 (#973)

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.7.1 to 6.7.2.
- [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/v6.7.1...v6.7.2)

---
updated-dependencies:
- dependency-name: css-loader
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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