Add conditional check vat

This MR adds a check for conditional approval, allowing conditionally approved containers to pass lint/check-cves

Pipeline tests:
https://repo1.dso.mil/dsop/gitlab/gitlab/gitlab-ruby/-/jobs/1356336#L46
https://repo1.dso.mil/dsop/opensource/pipeline-test-project/ubi8-minimal/-/jobs/1356350#L37
https://repo1.dso.mil/dsop/opensource/maven/maven-openjdk-8/-/jobs/1356603#L53