Bump clean-css-cli from 5.2.1 to 5.2.2 (#33433)

Bump clean-css-cli from 5.2.1 to 5.2.2 (#33433)

Bumps [clean-css-cli](https://github.com/jakubpawlowicz/clean-css-cli) from 5.2.1 to 5.2.2.
- [Release notes](https://github.com/jakubpawlowicz/clean-css-cli/releases)
- [Changelog](https://github.com/jakubpawlowicz/clean-css-cli/blob/master/History.md)
- [Commits](https://github.com/jakubpawlowicz/clean-css-cli/compare/v5.2.1...v5.2.2)

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