Fix the defaultaction and publicnetworkaccess property in 2021-11 version for servicebus#17389

lirenhe merged 2 commits intoAzure:mainAzure/azure-rest-api-specs:mainfrom

apraovjr:aprao-fixnetworkruleexample2021sbapraovjr/azure-rest-api-specs:aprao-fixnetworkruleexample2021sbCopy head branch name to clipboard