Fix obsolete.

Author: sarahelsaig

NuGetTest/test/Lombiq.OSOCE.NuGet.Tests.UI/UITestBase.cs

@@ -35,14 +35,7 @@ protected override Task ExecuteTestAsync(
             async configuration =>
             {
                 // This can be removed once https://github.com/OrchardCMS/OrchardCore/issues/15222 is done.
-                configuration.HtmlValidationConfiguration.AssertHtmlValidationResultAsync = validationResult =>
-                {
-                    var errors = validationResult.GetParsedErrors()
-                        .Where(error => error.RuleId is not ("prefer-native-element" or "aria-label-misuse"))
-                        .ToList();
-                    errors.ShouldBeEmpty(HtmlValidationResultExtensions.GetParsedErrorMessageString(errors));
-                    return Task.CompletedTask;
-                };
+                configuration.HtmlValidationConfiguration.WithOC15222Filter();
 
                 if (changeConfigurationAsync != null) await changeConfigurationAsync(configuration);
             });