OpenTofu: DynamoDB table removal for pure S3 backend

Our terraform-state module was upgraded from 5.1.3 to 6.0.0. This major version drops the DynamoDB table previously used for OpenTofu state locking in favor of native S3 locking.

Impact

The DynamoDB lock table (-terraform-state) is no longer provisioned or used State locking continues to work natively via S3 No impact on Atlantis/Terragrunt workflows

Why

AWS introduced native locking in S3, making the DynamoDB table redundant. This simplifies the bootstrap infrastructure and reduces the number of AWS resources to maintain.