fix: packages/paste-website/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-TRIM-1017038

Author: snyk-bot

packages/paste-website/package.json

@@ -22,8 +22,8 @@
   "dependencies": {
     "@datadog/browser-rum": "^5.0.0",
     "@hookform/error-message": "2.0.0",
-    "@mdx-js/loader": "^1.6.22",
-    "@mdx-js/mdx": "^1.6.22",
+    "@mdx-js/loader": "^2.0.0",
+    "@mdx-js/mdx": "^2.0.0",
     "@mdx-js/react": "^1.6.22",
     "@next/bundle-analyzer": "^14.0.0",
     "@next/mdx": "^14.0.0",