Support the setting of 'policy' attribute on transfer user. This allows an IAM policy to be set on the user to scope down the permissions applicable on the IAM Role associated with the user.
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/transfer_user#policy
https://docs.aws.amazon.com/transfer/latest/userguide/users-policies.html
Support the setting of 'policy' attribute on transfer user. This allows an IAM policy to be set on the user to scope down the permissions applicable on the IAM Role associated with the user.
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/transfer_user#policy
https://docs.aws.amazon.com/transfer/latest/userguide/users-policies.html