[AutoPR @azure/arm-appinsights] Add 2020Public version#4709

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openapi-sdkautomation[bot] wants to merge 1 commit intomasterfrom sdkAuto/14337/@azure_arm-appinsights

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Commits on Jun 1, 2021

CodeGen from PR 14337 in Azure/azure-rest-api-specs
SDKAuto
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