chore(deps-dev): bump postcss from 8.4.30 to 8.4.31 (#9270)

Author: dependabot[bot]

package-lock.json

@@ -171,7 +171,7 @@
     "npm-run-all": "^4.1.5",
     "oauth2-server": "^2.4.1",
     "open": "^9.1.0",
-    "postcss": "^8.4.30",
+    "postcss": "^8.4.31",
     "postcss-loader": "^7.3.0",
     "postcss-preset-env": "^9.1.4",
     "prettier": "^3.0.3",