build(deps-dev): bump mermaid from 10.0.2 to 10.1.0

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 10.0.2 to 10.1.0.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Changelog](https://github.com/mermaid-js/mermaid/blob/develop/CHANGELOG.md)
- [Commits](mermaid-js/mermaid@v10.0.2...v10.1.0)

I've also updated:
  - `docs/animated-flowchart.svg` (regenerated with the new Mermaid)
  - `src-test/test.js`
    (the format of Mermaid error messages has changed slighlty)

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

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