fix(ivy): align discovery methods for consistency (#27117)

PR Close #27117

packages/core/src/change_detection/differs/keyvalue_differs.ts

@@ -6,7 +6,8 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Optional, SkipSelf, StaticProvider} from '../../di';
+import {Optional, SkipSelf, StaticProvider, defineInjectable} from '../../di';
+import {DefaultKeyValueDifferFactory} from './default_keyvalue_differ';
 
 
 /**
@@ -116,6 +117,12 @@ export interface KeyValueDifferFactory {
  * @publicApi
  */
 export class KeyValueDiffers {
+  /** @nocollapse */
+  static ngInjectableDef = defineInjectable({
+    providedIn: 'root',
+    factory: () => new KeyValueDiffers([new DefaultKeyValueDifferFactory()])
+  });
+
   /**
    * @deprecated v4.0.0 - Should be private.
    */