Automatically authenticate to ECR private registry

[owenljn]

Currently, supplying username and password does the job, however, if running ECR private registry, the password retrieved through aws ecr get-login-password --region us-east-1 expires after 12 hours, can we modify the action to simply automatically retrieve the password each time a workflow runs?
Right now I have to store the ECR password in the Actions secret, but I have to do it every 12 hours.

[owenljn]

Nevermind, I can simply pass the previous step output for password value