fix: docs/package.json & docs/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DIFF-14917201

Author: snyk-bot

docs/package.json

@@ -16,7 +16,7 @@
     "docusaurus-plugin-sass": "^0.2.3",
     "mdx-link-checker": "^0.1.1",
     "mdx-mermaid": "^v1.3.0",
-    "mermaid": "^10.9.3",
+    "mermaid": "^11.0.0",
     "plugin-image-zoom": "ataft/plugin-image-zoom",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",