Update dependency postcss to v8.4.25

Author: renovate[bot]

packages/bento-design-system/package.json

@@ -161,7 +161,7 @@
     "madge": "^5.0.1",
     "mini-css-extract-plugin": "2.6.1",
     "playroom": "0.31.0",
-    "postcss": "8.4.24",
+    "postcss": "8.4.25",
     "prettier": "2.8.8",
     "react": "18.2.0",
     "react-dom": "18.2.0",