crane auth login: fail to login to ECR with repository name attached

[RaulWCosta]

Describe the bug

When I try to login into ECR using crane with the command crane auth login --username AWS --password-stdin 123456789.ecr.us-east-1.amazonaws.com/my_repository I get an error message Error: registries must be valid RFC 3986 URI authorities: 123456789.ecr.us-east-1.amazonaws.com/my_repository.

This might be more of a QoL feature than a bug fix :)

Expected behavior

I expect crane auth login to ignore the repository name, similarly to what docker login does.

Additional context

crane version -> 0.20.2
Registry used -> ECR