when running okta-aws-cli with the ---profile and --write-aws-credentials options, the out data does not include a region. This will result in the following error if no region is specified.

a region was not specified. You can run 'aws configure' or choose a profile with a region

The scope of this request is to add an option to include a region to write to the aws profile.

update file writing
https://github.com/okta/okta-aws-cli/blob/master/internal/output/aws_credentials_file.go#L208