build(deps-dev): bump mermaid from 11.17.2 to 12.0.0

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 11.17.2 to 12.0.0.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Commits](https://github.com/mermaid-js/mermaid/compare/mermaid@11.17.2...mermaid@12.0.0)

---
updated-dependencies:
- dependency-name: mermaid
  dependency-version: 12.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -181,7 +181,7 @@
     "jscpd": "5.2.0",
     "knip": "6.35.1",
     "lint-staged": "17.5.1",
-    "mermaid": "11.17.2",
+    "mermaid": "12.0.0",
     "papaparse": "5.7.0",
     "prettier": "3.9.6",
     "purgecss": "8.0.0",