Bump supertest from 6.3.3 to 6.3.4

Bumps [supertest](https://github.com/ladjs/supertest) from 6.3.3 to 6.3.4.
- [Release notes](https://github.com/ladjs/supertest/releases)
- [Commits](ladjs/supertest@v6.3.3...v6.3.4)

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

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

package.json

@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "jest": "^27.0.1",
-    "supertest": "^6.3.3"
+    "supertest": "^6.3.4"
   },
   "private": true
 }