fix(deps): update mdx monorepo to v2

Author: renovate-bot

package.json

@@ -16,8 +16,8 @@
     "@emotion/styled": "^11.9.3",
     "@formatjs/intl-locale": "^3.0.0",
     "@formatjs/intl-numberformat": "^8.0.0",
-    "@mdx-js/mdx": "^1.6.5",
-    "@mdx-js/react": "^1.6.5",
+    "@mdx-js/mdx": "^2.0.0",
+    "@mdx-js/react": "^2.0.0",
     "algoliasearch": "^4.3.0",
     "axios": "^0.21.2",
     "browser-lang": "^0.1.0",