chore(deps): bump @mermaid-js/layout-elk in /docs-site

Bumps [@mermaid-js/layout-elk](https://github.com/mermaid-js/mermaid) from 0.1.9 to 0.2.1.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Commits](https://github.com/mermaid-js/mermaid/compare/@mermaid-js/layout-elk@0.1.9...@mermaid-js/layout-elk@0.2.1)

---
updated-dependencies:
- dependency-name: "@mermaid-js/layout-elk"
  dependency-version: 0.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

docs-site/package-lock.json

@@ -19,7 +19,7 @@
     "@docusaurus/preset-classic": "3.9.2",
     "@docusaurus/theme-mermaid": "3.9.2",
     "@easyops-cn/docusaurus-search-local": "^0.55.0",
-    "@mermaid-js/layout-elk": "^0.1.9",
+    "@mermaid-js/layout-elk": "^0.2.1",
     "@mdx-js/react": "^3.0.0",
     "clsx": "^2.0.0",
     "prism-react-renderer": "^2.3.0",