August-2023-preview fix circular reference #25870

~[NotRequired_Staging] Swagger LintDiff succeeded

compared tags (via openapi-validator vbeta)	new version	base version
package-preview-2023-08	package-preview-2023-08(9180dcb)	package-preview-2023-08(release-machinelearningservices-Microsoft.MachineLearningServices-2023-08-01-preview)

[must fix]The following errors/warnings are introduced by current PR:

Rule	Message	Related RPC [For API reviewers]
⚠️ UniqueXmsExample	Do not have duplicate name of x-ms-example, make sure every x-ms-example name unique. Duplicate x-ms-example: List VM Sizes Location: Microsoft.MachineLearningServices/preview/2023-08-01-preview/machineLearningServices.json#L961
⚠️ UniqueXmsExample	Do not have duplicate name of x-ms-example, make sure every x-ms-example name unique. Duplicate x-ms-example: List VM Sizes Location: Microsoft.MachineLearningServices/preview/2023-08-01-preview/machineLearningServices.json#L903
⚠️ PostOperationIdContainsUrlVerb	OperationId should contain the verb: 'getallowedvmsizesforresize' in:'Compute_getAllowedResizeSizes'. Consider updating the operationId Location: Microsoft.MachineLearningServices/preview/2023-08-01-preview/machineLearningServices.json#L870
⚠️ PostOperationIdContainsUrlVerb	OperationId should contain the verb: 'updatequotas' in:'Quotas_Update'. Consider updating the operationId Location: Microsoft.MachineLearningServices/preview/2023-08-01-preview/machineLearningServices.json#L133

The following errors/warnings exist before current PR submission:

Rule	Message
⚠️ PageableOperation	Based on the response model schema, operation 'VirtualMachineSizes_List' might be pageable. Consider adding the x-ms-pageable extension. Location: Microsoft.MachineLearningServices/preview/2023-08-01-preview/machineLearningServices.json#L85