build(deps-dev): bump @mermaid-js/layout-elk from 0.1.3 to 0.1.4

Bumps [@mermaid-js/layout-elk](https://github.com/mermaid-js/mermaid) from 0.1.3 to 0.1.4.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Changelog](https://github.com/mermaid-js/mermaid/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/mermaid-js/mermaid/compare/@mermaid-js/layout-elk@0.1.3...@mermaid-js/layout-elk@0.1.4)

---
updated-dependencies:
- dependency-name: "@mermaid-js/layout-elk"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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