Parent image version hotfix
Fixes the lint stage's vat findings retrieval to use the base image version defined in by a hardening manifest's (HM) args.BASE_TAG value. Current functionality is to use the base image's version value. An example of this problem is UBI8 updating from 8.3 -> 8.4. An image that defines UBI8:8.3 as it's base, currently queries VAT for UIB8:8.4, as this is the version that UBI8 has in its HM.
Successful tests:
Edited by David Freeman