[AutoPR mgmt-v2015_05_01_preview] add updated databases.json swagger#5868

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openapi-sdkautomation[bot] wants to merge 1 commit intomasterfrom sdkAuto/11587/mgmt-v2015_05_01_preview

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Commits on Dec 3, 2020

CodeGen from PR 11587 in Azure/azure-rest-api-specs
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