Incorrect region name

[Skybound1]

Within https://github.com/scopely-devops/skew/blob/develop/skew/arn/__init__.py#L168 there is a missing comma, this results in the region name for af-south-1 and ca-central-1 being merged together to form af-south-1ca-central-1

[tobHai]

Thanks for reporting this error and sorry for the inconvenience!
I provided a fix for it.