Bump mermaid from 11.6.0 to 11.12.1

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 11.6.0 to 11.12.1.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Commits](https://github.com/mermaid-js/mermaid/compare/[email protected]@11.12.1)

---
updated-dependencies:
- dependency-name: mermaid
  dependency-version: 11.12.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]