Pulling out logger accessor

app/workers/merge_request_mergeability_check_worker.rb

@@ -10,11 +10,15 @@ class MergeRequestMergeabilityCheckWorker
   feature_category :code_review
   idempotent!
 
+  def logger
+    Sidekiq.logger
+  end
+
   def perform(merge_request_id)
     merge_request = MergeRequest.find_by_id(merge_request_id)
 
     unless merge_request
-      Sidekiq.logger.error(worker: self.class.name, message: "Failed to find merge request", merge_request_id: merge_request_id)
+      logger.error(worker: self.class.name, message: "Failed to find merge request", merge_request_id: merge_request_id)
       return
     end
 
@@ -23,6 +27,6 @@ class MergeRequestMergeabilityCheckWorker
         .new(merge_request)
         .execute(recheck: false, retry_lease: false)
 
-    Sidekiq.logger.error(worker: self.class.name, message: "Failed to check mergeability of merge request: #{result.message}", merge_request_id: merge_request_id) if result.error?
+    logger.error(worker: self.class.name, message: "Failed to check mergeability of merge request: #{result.message}", merge_request_id: merge_request_id) if result.error?
   end
 end