fix(functions): stop-billing - update dependencies to latest versions

Author: eapl-gemugami

functions/billing/stop_billing/package.json

@@ -8,23 +8,25 @@
     "node": ">=20.0.0"
   },
   "scripts": {
-    "compute-test": "c8 mocha -p -j 2 test/periodic.test.js --timeout=600000",
-    "test": "c8 mocha -p -j 2 test/index.test.js --timeout=5000 --exit"
+    "test": "c8 mocha -p -j 2 test/stop-billing.test.js --timeout=5000 --exit"
   },
-  "author": "Ace Nassri <anassri@google.com>",
+  "author": "Emmanuel Parada <paradalicea@google.com>",
   "license": "Apache-2.0",
   "dependencies": {
     "@google-cloud/billing": "^4.0.0",
     "@google-cloud/functions-framework": "^3.0.0",
+    "cloudevents": "^9.0.0",
     "gcp-metadata": "^6.0.0"
   },
   "devDependencies": {
     "c8": "^10.0.0",
+    "chai": "^5.2.1",
     "gaxios": "^6.0.0",
     "mocha": "^10.0.0",
     "promise-retry": "^2.0.0",
     "proxyquire": "^2.1.0",
     "sinon": "^18.0.0",
+    "supertest": "^7.1.3",
     "wait-port": "^1.0.4"
   }
 }