verify REST API client version

[dzsquared]

see if Azure resource manager client has an update, validate that we're not at risk of being on a deprecated version before releasing v2

sql-action/src/AzureSqlResourceManager.ts

Line 3 in 7e69fdc

import { ServiceClient as AzureRestClient, ToError, AzureError } from 'azure-actions-webclient/AzureRestClient'