fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-COOKIEJAR-3149984
- https://snyk.io/vuln/SNYK-JS-QS-3153490
- https://snyk.io/vuln/npm:debug:20170905

package.json

@@ -116,7 +116,7 @@
     "robots-parser": "^2.1.1",
     "standard": "^14.3.1",
     "start-server-and-test": "^1.11.3",
-    "supertest": "^4.0.2",
+    "supertest": "^7.0.0",
     "webpack-dev-middleware": "^3.7.2",
     "website-scraper": "^4.2.0"
   },