What is the version of your ORAS CLI

v0.16.0

What would you like to be added?

ORAS is commonly used in CI/CD pipelines and workflows like GitHub Actions workflow. It would be easier for users to introduce and set up ORAS to their GitHub CI/CD workflows if ORAS has a GitHub Actions showcased on GitHub Marketplace.

Additionally, we can add the two most commonly-used CLI commands as examples in this GH actions for getting started:

• oras push
• oras attach

Why is this needed for ORAS?

It will help users to easily introduce and set up ORAS to their GitHub CI/CD workflows and increase ORAS adoption.

Are you willing to submit PRs to contribute to this feature?

• Yes, I am willing to implement it.