Fetch secrets from OpenBao in CI pipeline

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/162963



Merged-by: Erick Bajao <fbajao@gitlab.com>
Approved-by: Erick Bajao <fbajao@gitlab.com>
Reviewed-by: Fabio Pitino <fpitino@gitlab.com>
Reviewed-by: Erick Bajao <fbajao@gitlab.com>
Reviewed-by: Mireya Andres <mandres@gitlab.com>
Reviewed-by: Dmytro Biryukov <dbiryukov@gitlab.com>
Reviewed-by: Jonas Larsen <jlarsen@gitlab.com>
Reviewed-by: James Nutt <jnutt@gitlab.com>
Reviewed-by: Alex Scheel <ascheel@gitlab.com>
Co-authored-by: Alexander Scheel <ascheel@gitlab.com>
Co-authored-by: Shabini Rajadas <srajadas@gitlab.com>