Missing 4.1 feature documentation - Azure Data Explorer output plugin (Kusto workload id)

[eschabell]

Missing new details from 4.1 release:

Azure Kusto - Workload identity

Need to update this file: https://docs.fluentbit.io/manual/data-pipeline/outputs/azure_kusto

[eschabell]

Updating Azure Data Explorer output plugin config options table based on code details found here: https://github.com/fluent/fluent-bit/blob/master/plugins/out_azure_kusto/azure_kusto.c#L1517