Update dependency @angular-devkit/build-angular to v0.11.1

Author: renovate-bot

package-lock.json

@@ -53,7 +53,7 @@
     "rxjs": "6.x"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "0.11.0",
+    "@angular-devkit/build-angular": "0.11.1",
     "@angular/cli": "7.1.0",
     "@angular/common": "7.1.1",
     "@angular/compiler": "7.1.1",