chore(deps-dev): bump supertest from 5.0.0 to 6.0.0

Bumps [supertest](https://github.com/visionmedia/supertest) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](ladjs/supertest@v5.0.0...v6.0.0)

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

package.json

@@ -44,7 +44,7 @@
 		"eslint-plugin-node": "^11.1.0",
 		"mocha": "^8.1.3",
 		"nyc": "^15.1.0",
-		"supertest": "^5.0.0",
+		"supertest": "^6.0.0",
 		"ts-mocha": "^8.0.0",
 		"typescript": "^4.0.3"
 	},