Bump postcss from 8.4.16 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.16 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@8.4.16...8.4.31)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
...

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

packages/nextjs/package.json

@@ -48,7 +48,7 @@
     "eslint-config-next": "^13.1.6",
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-prettier": "^4.2.1",
-    "postcss": "^8.4.16",
+    "postcss": "^8.4.31",
     "prettier": "^2.8.4",
     "tailwindcss": "^3.1.8",
     "typescript": "^4.9.5",

yarn.lock

@@ -1134,7 +1134,7 @@ __metadata:
     next: ^13.1.6
     next-plausible: ^3.10.1
     nextjs-progressbar: ^0.0.16
-    postcss: ^8.4.16
+    postcss: ^8.4.31
     prettier: ^2.8.4
     qrcode.react: ^3.1.0
     react: ^18.2.0
@@ -6255,6 +6255,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"nanoid@npm:^3.3.6":
+  version: 3.3.6
+  resolution: "nanoid@npm:3.3.6"
+  bin:
+    nanoid: bin/nanoid.cjs
+  checksum: 7d0eda657002738aa5206107bd0580aead6c95c460ef1bdd0b1a87a9c7ae6277ac2e9b945306aaa5b32c6dcb7feaf462d0f552e7f8b5718abfc6ead5c94a71b3
+  languageName: node
+  linkType: hard
+
 "natural-compare@npm:^1.4.0":
   version: 1.4.0
   resolution: "natural-compare@npm:1.4.0"
@@ -6956,7 +6965,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.4.14, postcss@npm:^8.4.16":
+"postcss@npm:^8.4.14":
   version: 8.4.16
   resolution: "postcss@npm:8.4.16"
   dependencies:
@@ -6967,6 +6976,17 @@ __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
+
 "preact@npm:^10.12.0":
   version: 10.15.1
   resolution: "preact@npm:10.15.1"