fix(deps): update dependency cssnano to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cssnano	6.1.2 -> 7.0.4

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Release Notes

cssnano/cssnano (cssnano)

v7.0.4: v7.0.4

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Bug fixes

• fix(postcss-convert-values): preserve percent sign in border-image-width in https://github.com/cssnano/cssnano/pull/1645

v7.0.3: v7.0.3

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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 and @​seiyab for their contributions to this release.

v7.0.2: v7.0.2

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Bug Fixes

• fix invalid output in some cases where selectors contain comments

v7.0.1: v7.0.1

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Patch changes

Update postcss-calc dependency to latest version

v7.0.0: v7.0.0

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Breaking changes

This release drops official support for unmaintained long term support Node.js releases 14 and 16. It also drops support for non-long term support releases 19 and 21 and add support for Node.js 22. Only the package.json engines field has been updated. The code should otherwise be identical to the previous 6.1.2 release.

Ensuring support for older Node.js had become difficult as the GitHub actions runners are not available for the latest MacOS and recent pnpm also could not run on CI any more.

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