Update dependency postcss to v8.2.13 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
postcss (source)	8.2.10 -> 8.2.13

GitHub Vulnerability Alerts

CVE-2021-23382

The package postcss versions before 7.0.36 or between 8.0.0 and 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern /*\s* sourceMappingURL=(.*).

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Release Notes

postcss/postcss

v8.2.13

Compare Source

• Fixed ReDoS vulnerabilities in source map parsing (by Yeting Li).

v8.2.12

Compare Source

• Fixed package.json exports.

v8.2.11

Compare Source

• Fixed DEP0148 warning in Node.js 16.
• Fixed docs (by @​semiromid).

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[confused-Techie]

All tests are passing here, and with a change so small it doesn't make me to nervous.

But just to be sure, here's the CHANGELOG entries present between our versions:

• CHANGELOG
• DIFF

Entries:

• Fixed DEP0148 warning in Node.js 16
• Fixed docs
• Fixed package.json exports
• Fixed ReDoS vulnerabilities in source map parsing