Ensure that the retention policy is enabled for Azure Network Watcher Flow Log

Retention Policy is not enabled for Azure Network Watcher Flow Log, this may lead to loss of case sensitive logs.

At this time, the console UI does not have remediation steps available. For possible CLI remediation, see the product documentation (below) or use Terraform.

In Terraform -

1. In the azurerm_monitor_log_profile resource, set categories in array.

References:
https://learn.microsoft.com/en-us/azure/azure-monitor/essentials/activity-log?tabs=powershell
https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/monitor_log_profile