fix condition for recursive DeepPartial type

npm/ng-packs/packages/core/src/lib/models/utility.ts

@@ -1,14 +1,9 @@
 import { TemplateRef, Type } from '@angular/core';
 
 export type DeepPartial<T> = {
-  [P in keyof T]?: T[P] extends Serializable ? DeepPartial<T[P]> : T[P];
+  [P in keyof T]?: T[P] extends Record<string | number | symbol, any> ? DeepPartial<T[P]> : T[P];
 };
 
-type Serializable = Record<
-  string | number | symbol,
-  string | number | boolean | Record<string | number | symbol, any>
->;
-
 export type InferredInstanceOf<T> = T extends Type<infer U> ? U : never;
 export type InferredContextOf<T> = T extends TemplateRef<infer U> ? U : never;