build(deps-dev): bump mermaid in /packages/editor

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 11.13.0 to 11.15.0.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Commits](https://github.com/mermaid-js/mermaid/compare/mermaid@11.13.0...mermaid@11.15.0)

---
updated-dependencies:
- dependency-name: mermaid
  dependency-version: 11.15.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/editor/package.json

@@ -251,7 +251,7 @@
     "lowlight": "catalog:peers",
     "markdown-it": "catalog:peers",
     "markdown-it-testgen": "^0.1.6",
-    "mermaid": "11.13.0",
+    "mermaid": "11.15.0",
     "npm-run-all": "^4.1.5",
     "postcss": "catalog:linters",
     "prettier": "catalog:linters",