Bump @mdx-js/react from 1.5.8 to 1.6.0 in /website (#1278)

Bumps [@mdx-js/react](https://github.com/mdx-js/mdx) from 1.5.8 to 1.6.0.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/master/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/compare/v1.5.8...v1.6.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

website/package.json

@@ -12,7 +12,7 @@
     "@fortawesome/free-solid-svg-icons": "^5.13.0",
     "@fortawesome/react-fontawesome": "^0.1.9",
     "@mdx-js/mdx": "^1.5.8",
-    "@mdx-js/react": "^1.5.8",
+    "@mdx-js/react": "^1.6.0",
     "@mdx-js/tag": "^0.20.3",
     "@theme-ui/color": "^0.3.1",
     "@theme-ui/match-media": "^0.3.1",

website/yarn.lock

@@ -2056,15 +2056,10 @@
     unist-builder "2.0.3"
     unist-util-visit "2.0.2"
 
-"@mdx-js/react@^1.0.0", "@mdx-js/react@^1.0.21", "@mdx-js/react@^1.5.8":
-  version "1.5.8"
-  resolved "https://registry.yarnpkg.com/@mdx-js/react/-/react-1.5.8.tgz#fc38fe0eb278ae24666b2df3c751e726e33f5fac"
-  integrity sha512-L3rehITVxqDHOPJFGBSHKt3Mv/p3MENYlGIwLNYU89/iVqTLMD/vz8hL9RQtKqRoMbKuWpzzLlKIObqJzthNYg==
-
-"@mdx-js/react@^1.5.9":
-  version "1.5.9"
-  resolved "https://registry.yarnpkg.com/@mdx-js/react/-/react-1.5.9.tgz#31873ab097fbe58c61c7585fc0be64e83182b6df"
-  integrity sha512-rengdUSedIdIQbXPSeafItCacTYocARAjUA51b6R1KNHmz+59efz7UmyTKr73viJQZ98ouu7iRGmOTtjRrbbWA==
+"@mdx-js/react@^1.0.0", "@mdx-js/react@^1.0.21", "@mdx-js/react@^1.5.8", "@mdx-js/react@^1.5.9", "@mdx-js/react@^1.6.0":
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/@mdx-js/react/-/react-1.6.0.tgz#96ec0c153beca0e1fc7111460f7b6982f092aeb4"
+  integrity sha512-Sn9Rm7/C02PzrpzusM12etSMdZHFUNJGgY1t7nR8Ds10S9hnFKWxnQ1J2b4YrQfzRKn1fOm4wv/KAEUy3oubPA==
 
 "@mdx-js/runtime@^1.5.8":
   version "1.5.9"