Add default_branch_image to security report
Why is this change being made?
For gitlab-org&5577 (closed) / gitlab-org/gitlab#338876 (closed)
This MR adds the new default_branch_image
field added to the security report schemas in gitlab-org/security-products/security-report-schemas!89 (merged). See the linked issue / epic for the motivation behind this change.
Edited by Brian Williams