Bump postcss from 8.4.21 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.21 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@8.4.21...8.4.31)

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

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

package.json

@@ -39,7 +39,7 @@
     "mapbox-gl": "npm:[email protected]",
     "maplibre-gl": "2.1.9",
     "next": "13.2.4",
-    "postcss": "8.4.21",
+    "postcss": "8.4.31",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "react-map-gl": "7.0.25",

yarn.lock

@@ -3740,7 +3740,7 @@ __metadata:
     mapbox-gl: "npm:[email protected]"
     maplibre-gl: 2.1.9
     next: 13.2.4
-    postcss: 8.4.21
+    postcss: 8.4.31
     prettier: 2.8.3
     prettier-plugin-tailwindcss: 0.2.1
     react: 18.2.0
@@ -6822,14 +6822,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.21":
-  version: 8.4.21
-  resolution: "postcss@npm:8.4.21"
+"postcss@npm:8.4.31, postcss@npm:^8.0.9":
+  version: 8.4.31
+  resolution: "postcss@npm:8.4.31"
   dependencies:
-    nanoid: ^3.3.4
+    nanoid: ^3.3.6
     picocolors: ^1.0.0
     source-map-js: ^1.0.2
-  checksum: e39ac60ccd1542d4f9d93d894048aac0d686b3bb38e927d8386005718e6793dbbb46930f0a523fe382f1bbd843c6d980aaea791252bf5e176180e5a4336d9679
+  checksum: 1d8611341b073143ad90486fcdfeab49edd243377b1f51834dc4f6d028e82ce5190e4f11bb2633276864503654fb7cab28e67abdc0fbf9d1f88cad4a0ff0beea
   languageName: node
   linkType: hard
 
@@ -6845,17 +6845,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:^8.0.9":
-  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
-
 "posthtml-parser@npm:^0.2.0, posthtml-parser@npm:^0.2.1":
   version: 0.2.1
   resolution: "posthtml-parser@npm:0.2.1"