message: add connectionPolicy spec back to V5 SDK
diff: @@ -43,6 +43,7 @@ APIs must only be added to this section when the API is publicly available in at
  ``` yaml $(tag) == 'package-composite-v5'
  input-file:
  - Microsoft.Sql/stable/2014-04-01/backups_legacy.json
  +- Microsoft.Sql/stable/2014-04-01/connectionPolicies.json
  - Microsoft.Sql/stable/2014-04-01/dataMasking.json
  - Microsoft.Sql/stable/2014-04-01/geoBackupPolicies.json
  - Microsoft.Sql/stable/2014-04-01/metrics.json
  