feat(demo): update demo to angular15

Author: mhenkens

demo-app/ng13/src/app/parent-error-state-matcher.ts

@@ -119,8 +119,8 @@
       }
     }
   },
-  "defaultProject": "demo-app",
   "cli": {
-    "defaultCollection": "@angular-eslint/schematics"
+    "schematicCollections": ["@angular-eslint/schematics"],
+    "analytics": false
   }
 }