Update dependency supertest to v7

Author: renovate[bot]

package.json

@@ -19,7 +19,7 @@
     "pre-commit": "^1.1.3",
     "sinon": "^1.17.4",
     "sinon-chai": "^3.0.0",
-    "supertest": "^6.0.0"
+    "supertest": "^7.0.0"
   },
   "pre-commit": [
     "lint",