Bump rehype-raw from 3.0.0 to 4.0.1

Bumps [rehype-raw](https://github.com/rehypejs/rehype-raw) from 3.0.0 to 4.0.1.
- [Release notes](https://github.com/rehypejs/rehype-raw/releases)
- [Commits](rehypejs/rehype-raw@3.0.0...4.0.1)

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

packages/markdown/package.json

@@ -8,7 +8,7 @@
     "hast-util-sanitize": "^1.2.0",
     "prop-types": "^15.7.2",
     "react": "^16.4.2",
-    "rehype-raw": "^3.0.0",
+    "rehype-raw": "^4.0.1",
     "rehype-react": "^3.1.0",
     "rehype-sanitize": "^2.0.1",
     "remark-breaks": "^1.0.0",