chore: bump supertest from 6.1.5 to 6.1.6
chore: bump supertest from 6.1.5 to 6.1.6

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.1.5 to 6.1.6.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](https://github.com/visionmedia/supertest/compare/v6.1.5...v6.1.6)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
stackia/test2doc.js,stackia/test2doc.js