### What is the version of your ORAS CLI v1.2.0 ### What would you like to be added? ORAS users should be able to filter the attributes of the command metadata output via lower cased key names. ### Why is this needed for ORAS? It's a widely applied and proven user-experience of `kubectl`. ### Are you willing to submit PRs to contribute to this feature? - [X] Yes, I am willing to implement it.