Update react monorepo to v18

Author: renovate-bot

package.json

@@ -26,8 +26,8 @@
     "mdx-utils": "0.2.0",
     "prism-react-renderer": "1.1.1",
     "prop-types": "15.7.2",
-    "react": "16.13.1",
-    "react-dom": "16.13.1",
+    "react": "18.1.0",
+    "react-dom": "18.1.0",
     "react-helmet": "6.1.0",
     "react-live": "2.2.2"
   },