Documentation typo in `ContainerResourceBuilderExtensions.cs`

[KuraiAndras]

Typoe in https://learn.microsoft.com/en-us/dotnet/api/aspire.hosting.containerresourcebuilderextensions.withcontainerfiles?view=dotnet-aspire-9.2&source=docs

var appModel = context.ServiceProvider.GetRequiredService{DistributedApplicationModel}();
var postgresInstances = appModel.Resources.OfType{PostgresDatabaseResource}();

Should be:

var appModel = context.ServiceProvider.GetRequiredService<DistributedApplicationModel>();
var postgresInstances = appModel.Resources.OfType<PostgresDatabaseResource>();