Update dependency css-loader to v6.9.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
css-loader	6.9.0 -> 6.9.1

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Release Notes

webpack-contrib/css-loader (css-loader)

### [`v6.9.1`](https://togithub.com/webpack-contrib/css-loader/blob/HEAD/CHANGELOG.md#691-2024-01-18) [Compare Source](https://togithub.com/webpack-contrib/css-loader/compare/v6.9.0...v6.9.1)

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Configuration

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