chore(deps): update dependency next-mdx-remote to v4 (#163)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -19,7 +19,7 @@
     "lodash.camelcase": "4.3.0",
     "lodash.startcase": "4.4.0",
     "next": "12.1.4",
-    "next-mdx-remote": "3.0.8",
+    "next-mdx-remote": "4.0.2",
     "next-seo": "5.4.0",
     "react": "17.0.2",
     "react-dom": "17.0.2",