build(deps-dev): bump tap from 16.3.8 to 18.6.1

Bumps [tap](https://github.com/tapjs/tapjs) from 16.3.8 to 18.6.1.
- [Release notes](https://github.com/tapjs/tapjs/releases)
- [Commits](https://github.com/tapjs/tapjs/compare/v16.3.8...tap@18.6.1)

---
updated-dependencies:
- dependency-name: tap
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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