Missing runtime object on ContainerApp resource

[davidfowl]

This issue dotnet/aspire#9071, requires us to set the data protection property on the runtime object on the ContainerApp resource, but its missing from the cdk.

https://github.com/Azure/azure-rest-api-specs/blob/18f9e9bfeeccb0f9a44c9902e8478fbe97d2c3c6/specification/app/resource-manager/Microsoft.App/preview/2024-02-02-preview/ContainerApps.json#L913