Disable 10109: Modern Web Application

What does this MR do?

The ZAP alert https://www.zaproxy.org/docs/alerts/10109 detects if the scanned website is a modern web application and suggests that an AJAX scanner should be used. In a GitLab context, this alert isn't as useful as in a purely ZAP context, and the alert causes some e2e tests to fail intermittently, so this MR disables it.

The MR is the action on !439 (comment 558465682)

What are the relevant issue numbers?

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Job definition example
  • Vendored CI Templates (also in CE)
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer