chore(deps-dev): bump supertest from 6.1.6 to 6.2.3

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.1.6 to 6.2.3.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](forwardemail/supertest@v6.1.6...v6.2.3)

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

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

Author: dependabot[bot]

package-lock.json

@@ -75,7 +75,7 @@
     "pre-push": "^0.1.2",
     "shelljs": "^0.8.5",
     "sinon": "^12.0.0",
-    "supertest": "6.1.6",
+    "supertest": "6.2.3",
     "typescript": "^4.5.5",
     "wait-on": "^6.0.1"
   }