Sentinel example does not work without onboarding workspace resource

https://github.com/Azure/azure-quickstart-templates/blob/master/quickstarts/microsoft.operationsmanagement/azure-sentinel/main.bicep

does not work without onboarding the workspace

// Onboard Sentinel after it has been created
resource onboardingStates 'Microsoft.SecurityInsights/onboardingStates@2022-12-01-preview' = {
scope: workspace
name: 'default'
}

Start with quickstarts/microsoft.operationsmanagement/azure-sentinel/main.bicep and inspect how the workspace and Sentinel resources are deployed. Deploy the example in a workspace without prior onboarding and verify the reported failure. Done means the template handles Sentinel onboarding as part of the deployment.

Written by the indexing model from the issue text.