Update azure-arm-eventhub to 2.1.0
Update azure-arm-eventhub to 2.1.0

xingwu1/azure-sdk-for-node,Azure/azure-sdk-for-node,xingwu1/azure-sdk-for-node,Azure/azure-sdk-for-node,xingwu1/azure-sdk-for-node,Azure/azure-sdk-for-node