Update dependency cssnano to v7.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cssnano	7.0.2 -> 7.0.3

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Release Notes

cssnano/cssnano (cssnano)

### [`v7.0.3`](https://togithub.com/cssnano/cssnano/releases/tag/cssnano%407.0.3): v7.0.3 [Compare Source](https://togithub.com/cssnano/cssnano/compare/cssnano@7.0.2...cssnano@7.0.3) #### Bug Fixes - cssnano-preset-default: preserve SVG viewbox and title by default - postcss-convert-values: preserve percent sign in arguments of color functions when needed - postcss-ordered-values: preserve correct order in animation property - postcss-minify-selectors: preserve quotes when escaping selector is required - postcss-discard-comments: do not remove strings that only look like comments in selectors Thanks to [@​ota-meshi](https://togithub.com/ota-meshi) and [@​seiyab](https://togithub.com/seiyab) for their contributions to this release.

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