chore: revert the change tothe version of nativescript-dev-webpack in test-app-ng

Author: VladimirAmiorkov

e2e/tests-app-ng/package.json

@@ -38,7 +38,7 @@
     "codelyzer": "^5.1.0",
     "filewalker": "^0.1.3",
     "lazy": "1.0.11",
-    "nativescript-dev-webpack": "rc",
+    "nativescript-dev-webpack": "next",
     "tslint": "^5.4.3",
     "typescript": "~3.5.3"
   },