Reduce urgency of EmailsOnPushWorker

Emails are not time-critical, so we can reduce the urgency of this
worker.

app/workers/all_queues.yml

@@ -1021,7 +1021,7 @@
 - :name: emails_on_push
   :feature_category: :source_code_management
   :has_external_dependencies: 
-  :urgency: :high
+  :urgency: :low
   :resource_boundary: :cpu
   :weight: 2
   :idempotent: 

app/workers/emails_on_push_worker.rb

@@ -6,7 +6,7 @@ class EmailsOnPushWorker # rubocop:disable Scalability/IdempotentWorker
   attr_reader :email, :skip_premailer
 
   feature_category :source_code_management
-  urgency :high
+  urgency :low
   worker_resource_boundary :cpu
   weight 2
 

changelogs/unreleased/low-urgency-idempotent-email-worker.yml

+---
+title: Reduce urgency of EmailsOnPushWorker
+merge_request: 28783
+author:
+type: other