Bump supertest from 6.0.1 to 6.1.3

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.0.1 to 6.1.3.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](forwardemail/supertest@v6.0.1...v6.1.3)

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

Author: dependabot[bot]

package-lock.json

@@ -62,10 +62,10 @@
     "@typescript-eslint/parser": "^4.14.2",
     "@typescript-eslint/eslint-plugin": "^4.15.0",
     "ava": "^3.14.0",
-    "eslint": "^7.16.0",
+    "eslint": "^7.19.0",
     "nodemon": "^2.0.6",
     "prettier": "^2.2.1",
-    "supertest": "^6.0.1",
+    "supertest": "^6.1.3",
     "typescript": "4.0.5"
   },
   "prettier": {