[AutoPR cdn/mgmt/2020-09-01/cdn] Update cdn.json#4117

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openapi-sdkautomation-test[bot] wants to merge 3 commits intomainfrom sdkAuto/1178/cdn_mgmt/2020-09-01/cdn

+581-357

Commits on Apr 20, 2021

Update swagger_to_sdk_config.json
Phoenix He
authored
now breaking change items will have empty array if there is not any

ArcturusZhang
authored and
Phoenix He
committed
CodeGen from PR 1178 in test-repo-tih/azure-rest-api-specs
SDKAuto
committed