How to configure log_level on gitlab-unicorn and gitlab-sidekiq?

I deployed a gitlab-ce on my Azure Kubernetes (AKS) with the helm chart.

I see that gitlab-unicorn and gitlab-sidekiq are very verbose in there logs by default.

How could I set the logLevel to ERROR for example ?

I managed to do so in the configMaps for gitlab-gitaly and gitlab-shell, but I don’t find anything for unicorn and sidekiq.

Thanks for your help.