Enable TGW Traffic analysis mode

[richardkeit]

**Is your feature request related to a problem?
It's challenging to create custom firewall dashboards to gain a few traffic flows and determine how the rules are affecting traffic.
This would provide great value to customers in the observability realm.

Describe the feature you'd like
Ability to enable Traffic analysis mode per this capability in this blog post https://aws.amazon.com/about-aws/whats-new/2025/02/aws-network-firewall-automated-domain-lists/

Expectations with the LZA TransitGatewayConfig object:

• API used: UpdateFirewallAnalysisSettings
• Options available: EnabledAnalysisTypes