Bump the npm_and_yarn group across 1 directory with 3 updates

Bumps the npm_and_yarn group with 3 updates in the /docs directory: [cross-spawn](https://github.com/moxystudio/node-cross-spawn), [http-proxy-middleware](https://github.com/chimurai/http-proxy-middleware) and [mermaid](https://github.com/mermaid-js/mermaid).


Updates `cross-spawn` from 7.0.3 to 7.0.6
- [Changelog](https://github.com/moxystudio/node-cross-spawn/blob/master/CHANGELOG.md)
- [Commits](moxystudio/node-cross-spawn@v7.0.3...v7.0.6)

Updates `http-proxy-middleware` from 2.0.6 to 2.0.7
- [Release notes](https://github.com/chimurai/http-proxy-middleware/releases)
- [Changelog](https://github.com/chimurai/http-proxy-middleware/blob/v2.0.7/CHANGELOG.md)
- [Commits](chimurai/http-proxy-middleware@v2.0.6...v2.0.7)

Updates `mermaid` from 10.9.1 to 10.9.3
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Changelog](https://github.com/mermaid-js/mermaid/blob/develop/CHANGELOG.md)
- [Commits](mermaid-js/mermaid@v10.9.1...v10.9.3)

---
updated-dependencies:
- dependency-name: cross-spawn
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: http-proxy-middleware
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: mermaid
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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