build(deps): bump mermaid from 10.8.0 to 10.9.0 in /templates (#9760)

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 10.8.0 to 10.9.0.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Changelog](https://github.com/mermaid-js/mermaid/blob/develop/CHANGELOG.md)
- [Commits](mermaid-js/mermaid@v10.8.0...v10.9.0)

---
updated-dependencies:
- dependency-name: mermaid
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

templates/package-lock.json

@@ -36,7 +36,7 @@
     "lunr": "2.3.9",
     "lunr-languages": "^1.14.0",
     "mathjax": "^3.2.2",
-    "mermaid": "^10.8.0"
+    "mermaid": "^10.9.0"
   },
   "devDependencies": {
     "@types/jest": "^29.5.12",