fix(deps): update remark monorepo

Author: renovate-bot

package.json

@@ -47,9 +47,9 @@
     "@babel/runtime": "7.15.3",
     "@mapbox/rehype-prism": "0.7.0",
     "rehype-raw": "5.1.0",
-    "remark-gfm": "1.0.0",
-    "remark-slug": "6.0.0",
-    "remark-autolink-headings": "6.0.1",
+    "remark-gfm": "2.0.0",
+    "remark-slug": "7.0.0",
+    "remark-autolink-headings": "7.0.0",
     "rehype-rewrite": "1.0.2",
     "react-markdown": "7.0.0"
   },