chore(deps-dev): bump supertest from 6.2.2 to 6.2.3 (#1248)

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.2.2 to 6.2.3.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](ladjs/supertest@v6.2.2...v6.2.3)

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

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Author: dependabot[bot]