fix(gitlab-ci): use ruamel to add workflow rules

mentioned in merge request gitlab-com/runbooks!8761 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/terraform/resource-tagger!39 (merged)

mentioned in merge request asdf-gl-infra!99 (merged)

mentioned in merge request label-wrangler!83 (merged)

mentioned in merge request gitlab-com/content-sites/handbook-tools/hugolint!127 (merged)

mentioned in merge request asdf-promtool!87 (merged)

mentioned in merge request terra-transformer!607 (merged)

mentioned in merge request andreas.brandl/watertemp-exporter!31 (closed)

mentioned in merge request common-ci-task-tests!233 (merged)

mentioned in merge request apps-script-scripts!12

mentioned in merge request gcp-quota-exporter!101

mentioned in merge request gitlab-com/gl-infra/k8s-mgmt/clusters!104 (merged)

mentioned in merge request gitlab-com/gl-infra/platform/gitlab-issue-report-kit!65

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/dedicated-aws-exporter!51 (merged)

mentioned in merge request gitlab-com/gl-infra/platform/runway/example-service!287 (merged)

mentioned in merge request gitlab-com/gl-infra/data-access/durability/gitlab-backup-cli!54 (merged)

mentioned in merge request gitlab-com/gl-infra/terraform-modules/observability/tenant-observability-stack!270 (merged)

mentioned in merge request jsonnet-tool!222 (merged)

mentioned in merge request ringctl!268 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/ip-allowlist-deny-blackbox!157 (merged)

mentioned in merge request truncated-tags!13 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/pg-slowlog-extractor!91

mentioned in merge request cmbr!376 (merged)

mentioned in merge request gitlab-com/gl-infra/observability/tenant-observability/config-manager!224 (merged)

mentioned in merge request autolabels!40 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/byok-status-exporter!319 (merged)

mentioned in merge request common-ci-tasks-images!578 (merged)

mentioned in merge request fluentd-docker!98 (merged)

mentioned in merge request gitlab-com/gl-infra/gitlab-dedicated/library/asdf-gl-tenctl!7 (merged)

mentioned in merge request common-ci-tasks!1009 (merged)

mentioned in merge request fforster/gitlab-mcp!17 (merged)

mentioned in merge request slackline!235 (merged)

mentioned in merge request andreas.brandl/watertemp-exporter!35

mentioned in merge request gitlab-com/gl-infra/k8s-mgmt/clusters!160 (merged)

mentioned in merge request fforster/epic-update!17 (merged)