chore(deps): update dependency cssnano to v7 (develop)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cssnano	6.1.2 -> 7.0.1

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Release Notes

cssnano/cssnano (cssnano)

### [`v7.0.1`](https://togithub.com/cssnano/cssnano/releases/tag/cssnano%407.0.1): v7.0.1 [Compare Source](https://togithub.com/cssnano/cssnano/compare/cssnano@7.0.0...cssnano@7.0.1) #### Patch changes Update postcss-calc dependency to latest version ### [`v7.0.0`](https://togithub.com/cssnano/cssnano/compare/cssnano-preset-advanced@6.1.2...cssnano-preset-advanced@7.0.0) [Compare Source](https://togithub.com/cssnano/cssnano/compare/cssnano@6.1.2...cssnano@7.0.0)

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Configuration

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