Update dependency postcss to v8.4.31 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
postcss (source)	8.4.18 -> 8.4.31

GitHub Vulnerability Alerts

CVE-2023-44270

An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be \r discrepancies, as demonstrated by @font-face{ font:(\r/*);} in a rule.

This vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being originally included in a comment.

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Release Notes

postcss/postcss (postcss)

v8.4.31

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• Fixed \r parsing to fix CVE-2023-44270.

v8.4.30

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• Improved source map performance (by Romain Menke).

v8.4.29

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• Fixed Node#source.offset (by Ido Rosenthal).
• Fixed docs (by Christian Oliff).

v8.4.28

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• Fixed Root.source.end for better source map (by Romain Menke).
• Fixed Result.root types when process() has no parser.

v8.4.27

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• Fixed Container clone methods types.

v8.4.26

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• Fixed clone methods types.

v8.4.25

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• Improve stringify performance (by Romain Menke).
• Fixed docs (by @​vikaskaliramna07).

v8.4.24

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• Fixed Plugin types.

v8.4.23

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• Fixed warnings in TypeDoc.

v8.4.22

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• Fixed TypeScript support with node16 (by Remco Haszing).

v8.4.21

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• Fixed Input#error types (by Aleks Hudochenkov).

v8.4.20

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• Fixed source map generation for childless at-rules like @layer.

v8.4.19

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• Fixed whitespace preserving after AST transformations (by Romain Menke).

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