[Bug]: Purge Azure Machine Learning workspaces when removing sometimes fails or is incomplete

[MariusStorhaug]

Description

When removing resources post deployment, also purge Azure Machine Learning workspaces post/during deletion.

Guess it might only be if you have a policy that enforces soft-delete.

18:20:29 - The deployment 'min-t3-20230820T1808300241Z' failed with
     | error(s). Showing 2 out of 2 error(s). Status Message: Soft-deleted
     | workspace exists. Please purge or recover it. https://aka.ms/wsoftdelete
     | (Code:BadRequest)  Status Message: At least one resource deployment
     | operation failed. Please list deployment operations for details. Please
     | see https://aka.ms/arm-deployment-operations for usage details. (Code:
     | DeploymentFailed)  - The resource write operation failed to complete
     | successfully, because it reached terminal provisioning state 'Failed'.
     | (Code: ResourceDeploymentFailure)    - Soft-deleted workspace exists.
     | Please purge or recover it. https://aka.ms/wsoftdelete (Code:BadRequest)
     | CorrelationId: 8dfa9a71-db60-4e1e-a106-08154322d2ec
##[error]PowerShell exited with code '1'.

[MariusStorhaug]

Seems to be a preview thing atm: https://learn.microsoft.com/en-us/rest/api/azureml/2023-06-01-preview/workspaces/delete?tabs=HTTP

[MariusStorhaug]

Functionality is there, but removal sometimes fail. Will get more logs today if time permits.