style(rubocop): fix all safe auto correctable offenses

app/jobs/webhook_delivery_job.rb

@@ -1,6 +1,7 @@
 class WebhookDeliveryJob < Postal::Job
+
   def perform
-    if webhook_request = WebhookRequest.find_by_id(params['id'])
+    if webhook_request = WebhookRequest.find_by_id(params["id"])
       if webhook_request.deliver
         log "Succesfully delivered"
       else
@@ -10,4 +11,5 @@ class WebhookDeliveryJob < Postal::Job
       log "No webhook request found with ID '#{params['id']}'"
     end
   end
+
 end