[tests] Fix build errors and some vulnerabilities in 'angular-app' test project

Author: vrubezhny

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

@@ -24,6 +24,11 @@
     "core-js": "^3.25.2",
     "rxjs": "~7.8.0",
     "tslib": "^2.4.0",
-    "zone.js": "~0.15.0"
+    "zone.js": "^0.15.0"
+  },
+  "overrides": {
+    "zone.js": "^0.15.0",
+    "cross-spawn": "^7.0.5",
+    "http-proxy-middleware": "^3.0.0"
   }
 }