Fixing more errors with nullable reference types

src/Umbraco.Infrastructure/Persistence/Repositories/IEntityRepositoryExtended.cs

@@ -29,6 +29,6 @@ namespace Umbraco.Cms.Infrastructure.Persistence.Repositories
         /// </returns>
         IEnumerable<IEntitySlim> GetPagedResultsByQuery(
             IQuery<IUmbracoEntity> query, Guid[] objectTypes, long pageIndex, int pageSize, out long totalRecords,
-            IQuery<IUmbracoEntity> filter, Ordering ordering, Action<Sql<ISqlContext>> sqlCustomization = null);
+            IQuery<IUmbracoEntity>? filter, Ordering? ordering, Action<Sql<ISqlContext>>? sqlCustomization = null);
     }
 }