fix(deps): update dependency rehype-sanitize to v6 (#569)

#593

Author: renovate[bot]

www/package.json

@@ -29,7 +29,7 @@
     "mermaid": "~9.4.3",
     "react": "~18.2.0",
     "react-dom": "~18.2.0",
-    "rehype-sanitize": "~5.0.1"
+    "rehype-sanitize": "~6.0.0"
   },
   "eslintConfig": {
     "extends": [