message: Update swagger for SSIS IR to support SSISDB failover
diff: "name": "IntegrationRuntimeSsisCatalogPricingTier",
  "modelAsString": true
  }
  + },
  + "dualStandbyPairName": {
  + "description": "The dual standby pair name of Azure-SSIS Integration Runtimes to support SSISDB failover.",
  + "type": "string"
  }
  },
  "additionalProperties": {
  