Deletes specified tags from a resource.
See https://www.paws-r-sdk.com/docs/ecr_untag_resource/ for full documentation.
ecr_untag_resource(resourceArn, tagKeys)
[required] The Amazon Resource Name (ARN) of the resource from which to remove tags. Currently, the only supported resource is an Amazon ECR repository.
[required] The keys of the tags to be removed.