Merge branch '250671-don-t-init-http-metrics-in-sidekiq' into 'master'

Don't initialize http_request_duration_seconds bucket in sidekiq

See merge request gitlab-org/gitlab!43941

changelogs/unreleased/250671-don-t-init-http-metrics-in-sidekiq.yml

+---
+title: Don't expose http_request_duration_seconds metrics in sidekiq exporter
+merge_request: 43941
+author:
+type: performance

config/initializers/7_prometheus_metrics.rb

@@ -69,7 +69,9 @@ if !Rails.env.test? && Gitlab::Metrics.prometheus_metrics_enabled?
 
     Gitlab::Metrics.gauge(:deployments, 'GitLab Version', {}, :max).set({ version: Gitlab::VERSION }, 1)
 
-    Gitlab::Metrics::RequestsRackMiddleware.initialize_http_request_duration_seconds
+    unless Gitlab::Runtime.sidekiq?
+      Gitlab::Metrics::RequestsRackMiddleware.initialize_http_request_duration_seconds
+    end
   rescue IOError => e
     Gitlab::ErrorTracking.track_exception(e)
     Gitlab::Metrics.error_detected!