test: add integration test for lazy chunks in cli apps using experimentalRollupPass (#32957)

PR Close #32957

integration/cli-hello-world-lazy-rollup/src/app/app-routing.module.ts

@@ -0,0 +1,11 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+
+const routes: Routes = [{ path: 'lazy', loadChildren: () => import('./lazy/lazy.module').then(m => m.LazyModule) }];
+
+@NgModule({
+  imports: [RouterModule.forRoot(routes)],
+  exports: [RouterModule]
+})
+export class AppRoutingModule { }