refactor(docs-infra): mark the update component as OnPush (#56254)

After inspecting and testing the adev-update-guide component it
seems like it could be marked as OnPush. This change gets us closer
to enabling zoneless for adev.

PR Close #56254

adev/src/app/features/update/update.component.ts

@@ -1,4 +1,4 @@
-import {Component, HostListener, inject} from '@angular/core';
+import {ChangeDetectionStrategy, Component, HostListener, inject} from '@angular/core';
 import {Step, RECOMMENDATIONS} from './recommendations';
 import {Clipboard} from '@angular/cdk/clipboard';
 import {CdkMenuModule} from '@angular/cdk/menu';
@@ -31,6 +31,7 @@ interface Option {
     IconComponent,
   ],
   standalone: true,
+  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export default class AppComponent {
   protected title = '';