build: update @angular/cli to version 8.3.28

Author: renovate-bot

package.json

@@ -19,13 +19,13 @@
     "release": "standard-version --message 'release: prepare release and deployment of v%s'"
   },
   "dependencies": {
-    "@angular/common": "9.0.0-next.6",
-    "@angular/compiler": "9.0.0-next.6",
-    "@angular/core": "9.0.0-next.6",
-    "@angular/forms": "9.0.0-next.6",
-    "@angular/platform-browser": "9.0.0-next.6",
-    "@angular/platform-browser-dynamic": "9.0.0-next.6",
-    "@angular/router": "9.0.0-next.6",
+    "@angular/common": "9.1.11",
+    "@angular/compiler": "9.1.11",
+    "@angular/core": "9.1.11",
+    "@angular/forms": "9.1.11",
+    "@angular/platform-browser": "9.1.11",
+    "@angular/platform-browser-dynamic": "9.1.11",
+    "@angular/router": "9.1.11",
     "bootstrap": "~4.3.0",
     "core-js": "~2.6.0",
     "normalize.css": "~8.0.0",
@@ -34,9 +34,9 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "~0.803.4",
-    "@angular/cli": "8.3.4",
-    "@angular/compiler-cli": "9.0.0-next.6",
-    "@angular/language-service": "9.0.0-next.6",
+    "@angular/cli": "8.3.28",
+    "@angular/compiler-cli": "9.1.11",
+    "@angular/language-service": "9.1.11",
     "@types/chai": "~4.2.0",
     "@types/cucumber": "~6.0.0",
     "@types/jasmine": "~3.4.0",