build(deps): bump postcss from 8.4.24 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.24 to 8.4.31.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.24...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
...

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

yarn.lock

@@ -8872,7 +8872,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.31, postcss@npm:^8.4.27":
+"postcss@npm:8.4.31, postcss@npm:^8.4.23, postcss@npm:^8.4.27":
   version: 8.4.31
   resolution: "postcss@npm:8.4.31"
   dependencies:
@@ -8883,17 +8883,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.4.23":
-  version: 8.4.24
-  resolution: "postcss@npm:8.4.24"
-  dependencies:
-    nanoid: ^3.3.6
-    picocolors: ^1.0.0
-    source-map-js: ^1.0.2
-  checksum: 814e2126dacfea313588eda09cc99a9b4c26ec55c059188aa7a916d20d26d483483106dc5ff9e560731b59f45c5bb91b945dfadc670aed875cc90ddbbf4e787d
-  languageName: node
-  linkType: hard
-
 "prelude-ls@npm:^1.2.1":
   version: 1.2.1
   resolution: "prelude-ls@npm:1.2.1"