RenovateBot: Update dependency cssnano to v7.0.6

This MR contains the following updates:

Package	Type	Update	Change
cssnano	dependencies	patch	7.0.5 -> 7.0.6

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Release Notes

cssnano/cssnano (cssnano)

v7.0.6: v7.0.6

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What's Changed

• Update postcss-calc and selector-parser by @​ludofischer in https://github.com/cssnano/cssnano/pull/1663
• fix(postcss-convert-values): convert 0ms to 0s by @​btea in https://github.com/cssnano/cssnano/pull/1665

Full Changelog: https://github.com/cssnano/cssnano/compare/cssnano@7.0.5...cssnano@7.0.6

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Configuration

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This MR has been generated by Renovate Bot.