Resolve "No new security vulnerabilities help popover is not showing up"

What does this MR do?

Restore SAST popover to its former glory

Are there points in the code the reviewer needs to double check?

Screenshots (if relevant)

screenshot taken from bin/rspec ee/spec/features/projects/pipelines/pipeline_spec.rb:36

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests added for this feature/bug
• Conform by the code review guidelines
  • Has been reviewed by a Frontend maintainer
• End-to-end tests pass (package-qa manual pipeline job)

What are the relevant issue numbers?

Closes #6342 (closed)