build(deps-dev): bump postcss from 8.4.29 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.29 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@8.4.29...8.4.31)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -19,6 +19,6 @@
   "devDependencies": {
     "@nuxtjs/google-fonts": "^3.0.2",
     "@nuxtjs/tailwindcss": "^6.8.0",
-    "postcss": "^8.4.29"
+    "postcss": "^8.4.31"
   }
 }

yarn.lock

@@ -4184,7 +4184,7 @@ __metadata:
     "@nuxtjs/tailwindcss": ^6.8.0
     core-js: ^3.32.2
     nuxt: ^3.7.3
-    postcss: ^8.4.29
+    postcss: ^8.4.31
   languageName: unknown
   linkType: soft
 
@@ -6626,6 +6626,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"postcss@npm:^8.4.31":
+  version: 8.4.31
+  resolution: "postcss@npm:8.4.31"
+  dependencies:
+    nanoid: ^3.3.6
+    picocolors: ^1.0.0
+    source-map-js: ^1.0.2
+  checksum: 1d8611341b073143ad90486fcdfeab49edd243377b1f51834dc4f6d028e82ce5190e4f11bb2633276864503654fb7cab28e67abdc0fbf9d1f88cad4a0ff0beea
+  languageName: node
+  linkType: hard
+
 "pretty-bytes@npm:^6.1.1":
   version: 6.1.1
   resolution: "pretty-bytes@npm:6.1.1"