Update dependency css-loader to v3.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
css-loader	devDependencies	minor	3.0.0 -> 3.2.0

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Release Notes

webpack-contrib/css-loader

### [`v3.2.0`](https://togithub.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md#​320httpsgithubcomwebpack-contribcss-loadercomparev310v320-2019-08-06) [Compare Source](https://togithub.com/webpack-contrib/css-loader/compare/v3.1.0...v3.2.0) ##### Bug Fixes - replace `.` characters in localIndent to `-` character (regression) ([#​982](https://togithub.com/webpack-contrib/css-loader/issues/982)) ([967fb66](https://togithub.com/webpack-contrib/css-loader/commit/967fb66)) ##### Features - support es modules for assets loader ([#​984](https://togithub.com/webpack-contrib/css-loader/issues/984)) ([9c5126c](https://togithub.com/webpack-contrib/css-loader/commit/9c5126c)) ### [`v3.1.0`](https://togithub.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md#​320httpsgithubcomwebpack-contribcss-loadercomparev310v320-2019-08-06) [Compare Source](https://togithub.com/webpack-contrib/css-loader/compare/v3.0.0...v3.1.0) ##### Bug Fixes - replace `.` characters in localIndent to `-` character (regression) ([#​982](https://togithub.com/webpack-contrib/css-loader/issues/982)) ([967fb66](https://togithub.com/webpack-contrib/css-loader/commit/967fb66)) ##### Features - support es modules for assets loader ([#​984](https://togithub.com/webpack-contrib/css-loader/issues/984)) ([9c5126c](https://togithub.com/webpack-contrib/css-loader/commit/9c5126c))

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