Resolve "Approval status checking"

Do not merge until rework completed

Closes #113 (closed)
This MR checks the approval status of the image and prevents uploading to harbor and S3 if the image is not approved.

Relevant jobs:
https://repo1.dsop.io/dsop/opensource/pipeline-test-project/kubectl/-/jobs/580187
https://repo1.dsop.io/dsop/opensource/pipeline-test-project/kubectl/-/jobs/580188