Update dependency cssnano to v8.0.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
cssnano	8.0.5 → 8.0.6

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Release Notes

cssnano/cssnano (cssnano)

v8.0.6: v8.0.6

Compare Source

What's Changed

Bug Fixes

• fix(postcss-merge-rules): fix invalid merging in #​1893

• fix(postcss-merge-rules): use webref data to perform a merge #​1897

• fix(postcss-reduce-idents): do not break grid-template-areas in #​1898

• fix: ensure correct repository URL in published packages in #​1900

• fix(postcss-merge-longhand): improve longhand merging correctness in #​1907

• fix(postcss-merge-longhand): add a fuzzer and fix the cases it found in #​1914

• fix: improve selector minification in #​1915

Other Changes

• Small performance fix in #​1911

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@8.0.5...cssnano@8.0.6

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⚠️ Artifact update problem

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File name: yarn.lock

! Corepack is about to download https://repo.yarnpkg.com/4.15.0/packages/yarnpkg-cli/bin/yarn.js