chore(deps): update dependency stylus to v0.57.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
stylus	0.56.0 -> 0.57.0

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Release Notes

stylus/stylus

### [`v0.57.0`](https://togithub.com/stylus/stylus/blob/HEAD/Changelog.md#​0570--2022-02-19) [Compare Source](https://togithub.com/stylus/stylus/compare/0.56.0...0.57.0) \=================== - Fix: remove lib-cov and outdated deps. [#​2659](https://togithub.com/stylus/stylus/pull/2659)

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