fix(deps): update dependency stylelint-scss to v5.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylelint-scss	5.2.0 -> 5.2.1

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Release Notes

stylelint-scss/stylelint-scss (stylelint-scss)

### [`v5.2.1`](https://togithub.com/stylelint-scss/stylelint-scss/blob/HEAD/CHANGELOG.md#521) [Compare Source](https://togithub.com/stylelint-scss/stylelint-scss/compare/v5.2.0...v5.2.1) - Fixed: add missing `known-css-properties` dependency ([#​857](https://togithub.com/stylelint-scss/stylelint-scss/issues/857)). **Full Changelog**: https://github.com/stylelint-scss/stylelint-scss/compare/v5.2.0...v5.2.1

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