chore(deps): update dependency postcss to v8.4.47

Author: renovate[bot]

package.json

@@ -16,7 +16,7 @@
     "@types/react-dom": "18.3.0",
     "autoprefixer": "10.4.20",
     "parcel": "2.12.0",
-    "postcss": "8.4.45",
+    "postcss": "8.4.47",
     "process": "0.11.10",
     "typescript": "5.6.2"
   },