Add support for AWS Gov Partition

[kclinden]

Some attack techniques have hardcoded values for the AWS Commercial Partition. Using the datasource for aws_partition would allow you to dynamically get the right value based on where you are running the scenarios.

Example:
Cloudtrail has hardcoded policy.
https://github.com/DataDog/stratus-red-team/blob/main/v2/internal/attacktechniques/aws/defense-evasion/cloudtrail-delete/main.tf#L54

Ref: https://registry.terraform.io/providers/hashicorp/aws/4.8.0/docs/data-sources/partition

[christophetd]

Thanks for the suggestion! Did you run in any other problematic techniques?