build(deps-dev): bump supertest from 6.3.1 to 6.3.3

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.3.1 to 6.3.3.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](forwardemail/supertest@v6.3.1...v6.3.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -30,6 +30,6 @@
     "saucelabs": "7.2.0",
     "selenium-webdriver": "4.6.1",
     "sinon": "15.0.1",
-    "supertest": "6.3.1"
+    "supertest": "6.3.3"
   }
 }