build(deps-dev): bump mktestdocs from 0.2.3 to 0.2.4 (#805)

Bumps mktestdocs from 0.2.3 to 0.2.4.

---
updated-dependencies:
- dependency-name: mktestdocs
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Marcos Schroh <[email protected]>