Draft: DAST On-Demand Additional Ops QA

What does this MR do?

brings together multiple in-progress merge requests to allow us to qa the feature and help facilitate documentation.

How To

• update your local dast image (docker pull registry.gitlab.com/gitlab-org/security-products/analyzers/dast)
• start testing app locally and obtain url
• create new site profile using the ngrok url with appropriate authentication information:
  • username: admin
  • password: admin
  • username form field: username
  • password form field: password
• start an on-demand scan

Associated Merge Requests

• !58859 (merged)
• !58622 (merged)
• !58735 (merged)
• !58930 (merged)

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have included a changelog entry.
  • I have not included a changelog entry because _____.
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team