Add Continuous Vulnerability Scanning testing to main.gitlab-ci.yml
What does this MR do and why?
As per #462876
Continuous Vulnerability Scanning testing was added in GitLab to be orchestrated by GitLab QA - gitlab-qa!1361 (merged) / !163783 (merged)
This adds the test to CI such that it can be ran in a test pipeline.
MR acceptance checklist
Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.
How to set up and validate locally
GITLAB_LICENSE_MODE=test CHROME_DISABLE_DEV_SHM=true QA_SKIP_PULL=TRUE ./exe/gitlab-qa Test::Integration::ContinuousVulnerabilityScanning EE