Bump postcss from 8.4.23 to 8.4.31

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.23 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@8.4.23...8.4.31)

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

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

package.json

@@ -26,7 +26,7 @@
     "node-fetch": "3.3.1",
     "node-forge": "1.3.1",
     "nth-check": "2.1.1",
-    "postcss": "8.4.23",
+    "postcss": "8.4.31",
     "prism-react-renderer": "1.3.5",
     "raw-loader": "4.0.2",
     "react": "18.2.0",
@@ -62,7 +62,7 @@
     "nanoid": "3.3.6",
     "node-fetch": "3.3.1",
     "node-forge": "1.3.1",
-    "postcss": "8.4.23",
+    "postcss": "8.4.31",
     "react": "18.2.0",
     "react-dom": "18.2.0"
   },

yarn.lock

@@ -5960,10 +5960,10 @@ postcss-zindex@^5.1.0:
   resolved "https://registry.npmjs.org/postcss-zindex/-/postcss-zindex-5.1.0.tgz"
   integrity sha512-fgFMf0OtVSBR1va1JNHYgMxYk73yhn/qb4uQDq1DLGYolz8gHCyr/sesEuGUaYs58E3ZJRcpoGuPVoB7Meiq9A==
 
-[email protected].23, postcss@^8.3.11, postcss@^8.4.14, postcss@^8.4.17, postcss@^8.4.19:
-  version "8.4.23"
-  resolved "https://registry.npmjs.org/postcss/-/postcss-8.4.23.tgz"
-  integrity sha512-bQ3qMcpF6A/YjR55xtoTr0jGOlnPOKAIMdOWiv0EIT6HVPEaJiJB4NLljSbiHoC2RX7DN5Uvjtpbg1NPdwv1oA==
+[email protected].31, postcss@^8.3.11, postcss@^8.4.14, postcss@^8.4.17, postcss@^8.4.19:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"