Merge branch 'derekferguson-browser-based-dast-docs-GA-notice' into 'master'

Add browser-based DAST GA notice to docs

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/107130



Merged-by: Amy Qualls <aqualls@gitlab.com>
Approved-by: Amy Qualls <aqualls@gitlab.com>
Co-authored-by: Phillip Wells <pwells@gitlab.com>
Co-authored-by: Derek Ferguson <dferguson@gitlab.com>