fix(deps): update dependency postcss to v8.4.31 [security] (#4)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "eslint": "8.46.0",
     "eslint-config-next": "13.4.13",
     "next": "13.4.13",
-    "postcss": "8.4.27",
+    "postcss": "8.4.31",
     "react": "18.2.0",
     "react-confetti": "^6.1.0",
     "react-dom": "18.2.0",