Merge branch 'DarwinJS-add-dast-api-disable-vars-docs' into 'master'

Adding DAST_API disable vars

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/149841



Merged-by: Russell Dickenson <rdickenson@gitlab.com>
Approved-by: Russell Dickenson <rdickenson@gitlab.com>
Co-authored-by: DarwinJS <dsanoy@gitlab.com>