Export lightsail container service image to ECR

Hi, @kareem

I don't think I can. Local images only have push commands, and as you say, they don't seem to have commands to pull or export.

The other day, ECR for private repositories was supported by Lightsail, so I think it would be better to use ECR from the beginning like App Runner for compatibility in the future.

https://aws.amazon.com/jp/about-aws/whats-new/2022/05/amazon-lightsail-containers-deploying-images-amazon-ecr-private-repositories/