Skopeo copy testing

Merge Request Description

Ran into significant roadblocks while testing in Mario. This issue was created to track problems encountered: https://repo1.dso.mil/platform-one/private/big-bang/ironbank/ironbank-bootstrap/-/issues/1180

Merge Request BOE

Risk

Rollback Plan

Testing

Successful pipeline in Mario: https://code-ib-mario.staging.dso.mil/dsop/security-compass/jitt/nginx/-/pipelines/2738

Closes #674 (closed)