Bump vuepress-plugin-mermaidjs from 1.9.0 to 1.9.1 (#67)

Bumps [vuepress-plugin-mermaidjs](https://github.com/eFrane/vuepress-plugin-mermaidjs) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/eFrane/vuepress-plugin-mermaidjs/releases)
- [Changelog](https://github.com/eFrane/vuepress-plugin-mermaidjs/blob/main/Changelog.md)
- [Commits](eFrane/vuepress-plugin-mermaidjs@v1.9.0...v1.9.1)

---
updated-dependencies:
- dependency-name: vuepress-plugin-mermaidjs
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]