Update dependency cssnano to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cssnano	^7.0.0 → ^8.0.0

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Release Notes

cssnano/cssnano (cssnano)

v8.0.2: v8.0.2

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What's Changed

• perf(postcss-unique-selectors): add fast paths for the common cases by @​dkryaklin in #​1813
• perf(postcss-discard-duplicates): bucket rules by selector by @​dkryaklin in #​1815
• perf(postcss-merge-longhand): skip processors with no relevant decls by @​dkryaklin in #​1814
• Include postcss-discard-overridden types in package by @​itosa-kazu in #​1817
• fix: preserve apostrophes in svg data uris by @​pupuking723 in #​1819

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@8.0.1...cssnano@8.0.2

v8.0.1: v8.0.1

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What's Changed

• fix(postcss-minify-selectors): reject :is() fold when divergent middle contains a combinator under a non-empty prefix (closes #​1786) by @​dkryaklin in #​1798
• fix(postcss-minify-selectors): tighten :is() fold acceptance to a strict allowlist by @​dkryaklin in #​1799

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@8.0.0...cssnano@8.0.1

v8.0.0: v8.0.0

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What's Changed

• Move declaration sorter to advanced preset by @​ludofischer and @​Goodwine in #​1793
• Drop node 20 by @​ludofischer in #​1794

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@7.1.9...cssnano@8.0.0

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