Support for Firewall Policy Insights

### Is there an existing issue for this? - [x] I have searched the existing issues ### Description Firewall Policy Insights support isn't supported in the module, when re-running deployments config any insights config gets removed. Given the importance of firewall logs this should be enabled.. ### New or Affected Resource(s)/Data Source(s) azurerm_firewall_policy ### Potential Terraform Configuration ```hcl irewall_policy = optional(object({ name = optional(string) sku = optional(string, "Standard") auto_learn_private_ranges_enabled = optional(bool) base_policy_id = optional(string) dns = optional(object({ proxy_enabled = optional(bool, false) servers = optional(list(string)) })) threat_intelligence_mode = optional(string, "Alert") private_ip_ranges = optional(list(string)) threat_intelligence_allowlist = optional(object({ fqdns = optional(set(string)) ip_addresses = optional(set(string)) insights = optional(object({ default_log_analytics_workspace_id = string enabled = bool retention_in_days = optional(int) log_analytics_workspace = optional(list(object({ firewall_location = string id = string) })) ``` ### References _No response_