Add Commerce Integrations group panel
Related to gitlab-org/customers-gitlab-com#4859 (closed)
A new Commerce Integration group was added to Fulfillment. This MR adds the related group-based error budget panel.
Grafana snapshot (for dashboards/stage-groups/commerce_integrations.dashboard.jsonnet): https://dashboards.gitlab.net/dashboard/snapshot/T07DLXAL58MbtjTKR1JRqTIlOHOFQmXc
The snapshot above shows No Data as the :commerce_integrations feature category was assigned only to worker classes. I believe that having workers metrics being part of the error budget, we need to add sidekiq_jobs into the metrics-catalog. I'll take care of it as part of this MR.
Edited by Etienne Baqué