Description

1. Use the image name tag to push to the registry if it is passed.
2. Fixed the logic to get image SHA after push. Since the repoDigest gets deleted after the newly tagged image gets deleted, we need to grab it before deletion.

🎟 Issue(s)

https://github.com/astronomer/issues/issues/6768

🧪 Functional Testing

Locally -

1. astro deploy --image-name electromagnetic-ionosphere-6312/airflow:test3
   For this command, the image pushed to the registry had the tag test3
2. When private registry is enabled and sha_as_tag is true, it is calling the Houston updateDeploymentImage endpoint using the image SHA and not the tag.

Unit tests

📋 Checklist

• Rebased from the main (or release if patching) branch (before testing)
• Ran make test before taking out of draft
• Ran make lint before taking out of draft
• Added/updated applicable tests
• Tested against Astro-API (if necessary).
• Tested against Houston-API and Astronomer (if necessary).
• Communicated to/tagged owners of respective clients potentially impacted by these changes.
• Updated any related documentation