Update dependency css-loader to v5.2.5

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
css-loader	5.2.4 -> 5.2.5

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Release Notes

webpack-contrib/css-loader

### [`v5.2.5`](https://togithub.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md#​525-httpsgithubcomwebpack-contribcss-loadercomparev524v525-2021-05-20) [Compare Source](https://togithub.com/webpack-contrib/css-loader/compare/v5.2.4...v5.2.5)

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Configuration

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