test(@angular-devkit/build-angular): use targets instead of architect property

Author: filipesilva

tests/angular_devkit/build_angular/hello-world-app/angular.json

@@ -4,15 +4,15 @@
   "newProjectRoot": "./projects",
   "cli": {},
   "schematics": {},
-  "architect": {},
+  "targets": {},
   "projects": {
     "app": {
       "root": "src",
       "sourceRoot": "src",
       "projectType": "application",
       "prefix": "app",
       "schematics": {},
-      "architect": {
+      "targets": {
         "build": {
           "builder": "../../../../packages/angular_devkit/build_angular:browser",
           "options": {
@@ -138,7 +138,7 @@
     "app-e2e": {
       "root": "e2e",
       "projectType": "application",
-      "architect": {
+      "targets": {
         "e2e": {
           "builder": "../../../../packages/angular_devkit/build_angular:protractor",
           "options": {

tests/angular_devkit/build_ng_packagr/ng-packaged/angular.json

@@ -5,7 +5,7 @@
     "lib": {
       "root": "projects/lib",
       "projectType": "library",
-      "architect": {
+      "targets": {
         "build": {
           "builder": "../../../../packages/angular_devkit/build_ng_packagr:build",
           "options": {

tests/angular_devkit/build_webpack/angular-app/angular.json

@@ -4,14 +4,14 @@
   "newProjectRoot": "./projects",
   "cli": {},
   "schematics": {},
-  "architect": {},
+  "targets": {},
   "projects": {
     "app": {
       "root": "src",
       "sourceRoot": "src",
       "projectType": "application",
       "schematics": {},
-      "architect": {
+      "targets": {
         "build-webpack": {
           "builder": "../../../../packages/angular_devkit/build_webpack:webpack",
           "options": {

tests/angular_devkit/build_webpack/basic-app/angular.json

@@ -4,14 +4,14 @@
   "newProjectRoot": "./projects",
   "cli": {},
   "schematics": {},
-  "architect": {},
+  "targets": {},
   "projects": {
     "app": {
       "root": "src",
       "sourceRoot": "src",
       "projectType": "application",
       "schematics": {},
-      "architect": {
+      "targets": {
         "build": {
           "builder": "../../../../packages/angular_devkit/build_webpack:webpack",
           "options": {