Merge branch 'ka/db-docs/update-after-119840' into 'master'

Update DB dictionary description

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/139610



Merged-by: Eulyeon Ko <5961404-euko@users.noreply.gitlab.com>
Approved-by: Eulyeon Ko <5961404-euko@users.noreply.gitlab.com>
Co-authored-by: Krasimir Angelov <kangelov@gitlab.com>