Update dependency postcss-cli to v10

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
postcss-cli	^9.0.1 -> ^10.0.0

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Release Notes

postcss/postcss-cli

v10.1.0

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• Allow running --watch mode in non-TTY contexts, like Docker (#​448)
• Update dependencies

v10.0.0

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• BREAKING: Drop Node 12 support (#​438)
• Add support for ESM config files (#​437)

v9.1.0

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• Don't write to files if they're unchanged (#​320, #​417)

v9.0.2

Compare Source

• Switch to picocolors (#​409)
• Remove test files from npm package

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