I have added a composer for Output Caching. This has been working on .net 7 but not on .net 8

Please can you suggest how we can get it working.

public class OutputCacheComposer : IComposer
{
    public void Compose(IUmbracoBuilder builder)
    {
        builder.Services.AddOutputCache(options =>
        {
            options.AddPolicy("Onehour", b =>
            {
                b.Expire(TimeSpan.FromHours(1));
                b.Cache();
            });
        });

        builder.Services.Configure<UmbracoPipelineOptions>(options =>
        {
            options.AddFilter(new UmbracoPipelineFilter("OutputCache")
            {
                PostPipeline = app => app.UseOutputCache() 
            });
        });
    }
}


public class DefaultController : AsyncRenderController
{

    private readonly IModelLogic _modelLogic;

    public DefaultController(ILogger<DefaultController> logger,
        ICompositeViewEngine compositeViewEngine,
        IUmbracoContextAccessor umbracoContextAccessor,
        IModelLogic modelLogic)
    : base(logger, compositeViewEngine, umbracoContextAccessor)
    {
        _modelLogic = modelLogic;
    }

    [OutputCache(PolicyName = "OutputCache")]
    public async new Task<IActionResult> Index()
    {
        var masterModel = await _modelLogic.CreateMasterModel(CurrentPage);
        return this.CurrentTemplate(masterModel);
    }
}