Update zone.js in the overrides too

Author: akurtakov

org.eclipse.wildwebdeveloper.tests/testProjects/angular-app/package.json

@@ -27,7 +27,7 @@
     "zone.js": "^0.16.0"
   },
   "overrides": {
-    "zone.js": "^0.15.0",
+    "zone.js": "^0.16.0",
     "cross-spawn": "^7.0.5",
     "http-proxy-middleware": "^3.0.0"
   }