fix: support OCI manifests in container-diff
Adds support for OCI Manifests in container-diff.
Part of https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/5513
Edited by Andrew Newdigate
Adds support for OCI Manifests in container-diff.
Part of https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/5513