Bump jest-mock-extended from 3.0.7 to 4.0.0

Bumps [jest-mock-extended](https://github.com/marchaos/jest-mock-extended) from 3.0.7 to 4.0.0.
- [Release notes](https://github.com/marchaos/jest-mock-extended/releases)
- [Commits](marchaos/jest-mock-extended@3.0.7...4.0.0)

---
updated-dependencies:
- dependency-name: jest-mock-extended
  dependency-version: 4.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

lambdas/api-handler/package.json

@@ -7,7 +7,7 @@
     "@types/aws-lambda": "^8.10.148",
     "@types/jest": "^29.5.14",
     "jest": "^29.7.0",
-    "jest-mock-extended": "^3.0.7",
+    "jest-mock-extended": "^4.0.0",
     "typescript": "^5.8.2"
   },
   "name": "nhs-notify-supplier-api-handler",

lambdas/authorizer/package.json

@@ -7,7 +7,7 @@
     "@types/aws-lambda": "^8.10.148",
     "@types/jest": "^29.5.14",
     "jest": "^29.7.0",
-    "jest-mock-extended": "^3.0.7",
+    "jest-mock-extended": "^4.0.0",
     "typescript": "^5.8.2"
   },
   "name": "nhs-notify-supplier-authorizer",