Update dependency gulp-cssbeautify to v3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gulp-cssbeautify	2.0.1 -> 3.0.0

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Release Notes

jonkemp/gulp-cssbeautify

### [`v3.0.0`](https://togithub.com/jonkemp/gulp-cssbeautify/compare/v2.0.1...v3.0.0) [Compare Source](https://togithub.com/jonkemp/gulp-cssbeautify/compare/v2.0.1...v3.0.0)

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