@angular/compiler-cli and @ngtools/webpack are not updated by update script

[elena-p]

Describe the bug
dev dependencies @angular/compiler-cli and @ngtools/webpack are not updated by nativescript-angular update script

To Reproduce
npm i nativescript@6.0.0 -g
tns create --ng // angular dependencies are ~8.0.0
cd your-app-name
npm i nativescript-angular@8.1.0-next-2019-07-26-145152-01 --save
./node_modules/.bin/update-app-ng-deps

angular dependencies are updated to ~8.1.0
@angular/compiler-cli and @ngtools/webpack are NOT updated

Expected behavior
all angular dependencies should be updated

[NickIliev]

As far as I know, the nativescript-dev-webpack is responsible for fo updating those two. Running the webpack update script should do the job (at least It was how things were working up to this moment)

./node_modules/.bin/update-ns-webpack --deps