Add scan object to report

Adam Cohenrequested to merge
add-scan-object-to-report into master

What does this MR do?

This MR adds support for the scan object added to the common report by Add Scan object with scanner and type to report

"scan": {
  "scanner": {
    "id": "gemnasium",
    "name": "Gemnasium",
    "url": "https://gitlab.com/gitlab-org/security-products/analyzers/gemnasium",
    "vendor": {
      "name": "GitLab"
    },
    "version": "2.14.0"
  },
  "type": "dependency_scanning"
}

What are the relevant issue numbers?

gitlab-org/gitlab#202053 (closed)

Does this MR meet the acceptance criteria?

Merge request reports