Bump postcss from 8.4.22 to 8.4.23

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.22 to 8.4.23.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.22...8.4.23)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

yarn.lock

@@ -2228,8 +2228,8 @@ postcss-value-parser@^4.1.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz#443f6a20ced6481a2bda4fa8532a6e55d789a2cb"
 
 postcss@^8.0.9, postcss@^8.1.6, postcss@^8.2.1:
-  version "8.4.22"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.22.tgz#c29e6776b60ab3af602d4b513d5bd2ff9aa85dc1"
+  version "8.4.23"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.23.tgz#df0aee9ac7c5e53e1075c24a3613496f9e6552ab"
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"