build(deps-dev): bump supertest from 6.2.4 to 6.3.3 in /src

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.2.4 to 6.3.3.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](https://github.com/visionmedia/supertest/compare/v6.2.4...v6.3.3)

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

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

src/package.json

@@ -89,7 +89,7 @@
     "set-cookie-parser": "^2.4.8",
     "sinon": "^13.0.2",
     "split-grid": "^1.0.11",
-    "supertest": "^6.2.4",
+    "supertest": "^6.3.3",
     "typescript": "^4.6.4"
   },
   "engines": {