fix(data): allow ChangeSetItemFactory to update entities with number …

…ids (ngrx#1995)

Allow the `update` method of ChangeSetItemFactory to accept entities with numerical IDs.
This seems to be the intent, as the `Update<T>` it accepts can use either a string or a number for the ID, while the `update` method only allows for string IDs

Closes ngrx#1988

modules/data/src/actions/entity-cache-change-set.ts

@@ -85,7 +85,7 @@ export class ChangeSetItemFactory {
   }
 
   /** Create the ChangeSetUpdate for Updates of entities of the given entity type */
-  update<T extends { id: string }>(
+  update<T extends { id: string | number }>(
     entityName: string,
     updates: Update<T> | Update<T>[]
   ): ChangeSetUpdate<T> {