Update dependency postcss to ^8.4.48

Author: renovate[bot]

package-lock.json

@@ -32,7 +32,7 @@
     "lodash": "^4.17.21",
     "next": "^14.2.17",
     "nprogress": "^0.2.0",
-    "postcss": "^8.4.47",
+    "postcss": "^8.4.48",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-hook-form": "^7.53.2",