Updates @angular/cdk version

The @angular/cdk library was not updated when the other Angular
libraries were updated. This commit fixes this by updating this
library.

src/main/angular/package-lock.json

 {
   "name": "daa-example",
-  "version": "0.2.0-alpha.7",
+  "version": "0.2.0-alpha.8",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -253,18 +253,18 @@
       }
     },
     "@angular/cdk": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/@angular/cdk/-/cdk-7.3.1.tgz",
-      "integrity": "sha512-m6hy+HPLDgVM+Y2C3UWvIG06euIV8oG5QxrCitZui8JZ/dj/0V5bxATKgWN62haYnYR4en4z1bfH0kOvQj+LEA==",
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/@angular/cdk/-/cdk-8.2.3.tgz",
+      "integrity": "sha512-ZwO5Sn720RA2YvBqud0JAHkZXjmjxM0yNzCO8RVtRE9i8Gl26Wk0j0nQeJkVm4zwv2QO8MwbKUKGTMt8evsokA==",
       "requires": {
         "parse5": "^5.0.0",
         "tslib": "^1.7.1"
       },
       "dependencies": {
         "parse5": {
-          "version": "5.1.0",
-          "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.0.tgz",
-          "integrity": "sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ==",
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.1.tgz",
+          "integrity": "sha512-ugq4DFI0Ptb+WWjAdOK16+u/nHfiIrcE+sh8kZMaM0WllQKLI9rOUq6c2b7cwPkXdzfQESqvoqK6ug7U/Yyzug==",
           "optional": true
         }
       }

src/main/angular/package.json

 {
   "name": "daa-example",
-  "version": "0.2.0-alpha.7",
+  "version": "0.2.0-alpha.8",
   "scripts": {
     "ng": "./node_modules/.bin/ng",
     "start": "./node_modules/.bin/ng serve",
@@ -12,7 +12,7 @@
   "private": true,
   "dependencies": {
     "@angular/animations": "~8.2.14",
-    "@angular/cdk": "^7.2.2",
+    "@angular/cdk": "^8.2.3",
     "@angular/common": "~8.2.14",
     "@angular/compiler": "~8.2.14",
     "@angular/core": "~8.2.14",