Use sticky since retries are disabled

Delayed is incompatible with disabled retries, since
it uses a retry if there is replication lag.

ee/app/workers/geo/metrics_update_worker.rb

@@ -6,7 +6,7 @@ class MetricsUpdateWorker
 
     idempotent!
     worker_has_external_dependencies!
-    data_consistency :always
+    data_consistency :sticky
     deduplicate :until_executed, ttl: 20.minutes
 
     include Gitlab::Geo::LogHelpers