Remove container scanning
Originally, the DAST image used the ZAP image as the base image, which is why container scanning was used to test ZAP images for vulnerabilities. However, the ZAP image is no longer used in DAST as ZAP is downloaded and installed instead.
Since DAST no longer uses the ZAP image, there's no reason to continue testing it here, so this MR removes container scanning from this ZAP mirror.
Edited by Craig Smith