Merge branch 'illustrations-13-12' into 'master'

Update pipeline illustrations

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/139644



Merged-by: Mireya Andres <mandres@gitlab.com>
Approved-by: Scott de Jonge <sdejonge@gitlab.com>
Approved-by: Ravi Kumar <rkumar@gitlab.com>
Approved-by: Enrique Alcántara <ealcantara@gitlab.com>
Approved-by: Mark Chao <mchao@gitlab.com>
Approved-by: drew stachon <730684-drew@users.noreply.gitlab.com>
Approved-by: Mireya Andres <mandres@gitlab.com>
Reviewed-by: Veethika Mishra <6115425-veethika@users.noreply.gitlab.com>
Reviewed-by: Scott de Jonge <sdejonge@gitlab.com>
Co-authored-by: Scott de Jonge <sdejonge@gitlab.com>
Co-authored-by: Julia Miocene <jmiocene@gitlab.com>