[ReleasePR sql] Update the API version for Servers so that it works with OutboundFirewallRules (#1744)

Create to sync Azure/azure-rest-api-specs#14687
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/master...AzureSDKAutomation:sdkAuto/sql?expand=1)

Author: msftbot[bot]