chore: update postcss-nested and postcss-preset-env to latest versions

package.json

@@ -34,8 +34,8 @@
     "marked": "^15.0.7",
     "marked-highlight": "^2.2.1",
     "next": "14.2.4",
-    "postcss-nested": "^6.0.1",
-    "postcss-preset-env": "^9.5.14",
+    "postcss-nested": "^7.0.2",
+    "postcss-preset-env": "^10.1.5",
     "prettier": "^3.5.3",
     "react": "^18",
     "react-dom": "^18",