Posture check: Azure Machine Learning workspace not enforced with Managed Virtual Network Isolation
Query: ```config from cloud.resource where cloud.type = 'azure' and api.name = 'azure-machine-learning-workspace' AND json.rule = properties.provisioningState equal ignore case Succeeded and (properties.managedNetwork.isolationMode equal ignore case Disabled OR properties.managedNetwork.isolationMode does not exist)```