SKIP UPGRADE holocron update to 1.0.13

Closes big-bang/product/packages/holocron#38

See merge request !5851

(cherry picked from commit aefa86d3)

2334473a Updated holocron git tag
8d8083b9 istio harden holocron and remove over-writing holocron posttes image

Co-authored-by: Michael Martin <michaelmartin@seed-innovations.com>