Describe the bug
Error from the other region DLTRegionalFargateDLTCloudWatchLogsGroup:

download failed: s3://load-test-stack-dlttestrunnerstoragedltscenariosbu-3rtzettjjwdy/test-scenarios/8GbeMjMlll-ap-southeast-4.json to ./test.json An error occurred (IllegalLocationConstraintException) when calling the GetObject operation: The ap-southeast-2 location constraint is incompatible for the region specific endpoint this request was sent to.

Looks like issue is on below code that is not specifying the region when copying.
https://github.com/aws-solutions/distributed-load-testing-on-aws/blob/main/deployment/ecr/distributed-load-testing-on-aws-load-tester/load-test.sh#L25

To Reproduce
1 - Add the ecs:TagResource permission to the regional policy created under DLTLambdaFunctionDLTTestLambdaTaskR role.
2 - Execute a test on the new region.

Expected behavior
Test should work from another region

Please complete the following information about the solution:

• Version: [e.g. v1.1.0]
  3.2.5
• Region: [e.g. us-east-1]
  ap-southeast-4
• Was the solution modified from the version published on this repository?
  Yes, only added the ecs:tag permission
• If the answer to the previous question was yes, are the changes available on GitHub?
  No, issue opened by another user
• Have you checked your service quotas for the services this solution uses?
  Yes
• Were there any errors in the CloudWatch Logs?
  Yes

Additional context