feat: include help documentation for all CI jobs

mentioned in merge request cmbr!44 (merged)

mentioned in merge request gitlab-com/runbooks!4680 (merged)

mentioned in merge request pmv!68 (merged)

mentioned in merge request gitlab-org/release-tools!1867 (merged)

mentioned in merge request bigquery-loader!29 (merged)

mentioned in merge request terra-transformer!52 (merged)

mentioned in merge request asdf-gl-infra!6 (merged)

mentioned in merge request !128 (merged)

mentioned in merge request asdf-thanos!16 (merged)

mentioned in merge request asdf-promtool!10 (merged)

mentioned in merge request nolith/release-tools!5 (closed)