Update sla label specs

- add changelog

changelogs/unreleased/241663-incident-sla-cron-job.yml

+---
+title: Add Missed SLA label via Cron job
+merge_request: 44546
+author:
+type: added

ee/app/workers/incident_management/incident_sla_exceeded_check_worker.rb

@@ -11,10 +11,7 @@ module IncidentManagement
     def perform
       IssuableSla.exceeded_for_issues.find_in_batches do |incident_slas|
         incident_slas.each do |incident_sla|
-          ApplyIncidentSlaExceededLabelWorker.perform_async(incident_sla.issue.id)
-
-        rescue StandardError => e
-          Gitlab::AppLogger.error("Error encountered in #{self.class.name}: #{e}")
+          ApplyIncidentSlaExceededLabelWorker.perform_async(incident_sla.issue_id)
         end
       end
     end

ee/spec/workers/incident_management/apply_incident_sla_exceeded_label_worker_spec.rb

@@ -29,9 +29,9 @@ RSpec.describe IncidentManagement::ApplyIncidentSlaExceededLabelWorker do
   it 'adds a label to the incident' do
     expect { perform }.to change { incident.labels.reload.count }.by(1)
 
-    expected_props = IncidentManagement::CreateIncidentSlaExceededLabelService::LABEL_PROPERTIES
+    expected_label = project.labels.find_by!(IncidentManagement::CreateIncidentSlaExceededLabelService::LABEL_PROPERTIES)
 
-    expect(perform).to have_attributes(expected_props)
+    expect(perform).to eq(expected_label)
   end
 
   it 'adds a note that the label was added' do

ee/spec/workers/incident_management/incident_sla_exceeded_check_worker_spec.rb

@@ -21,25 +21,5 @@ RSpec.describe IncidentManagement::IncidentSlaExceededCheckWorker do
 
       perform
     end
-
-    context 'when error occurs' do
-      before do
-        allow(IncidentManagement::ApplyIncidentSlaExceededLabelWorker)
-          .to receive(:perform_async)
-          .twice
-
-        allow(IncidentManagement::ApplyIncidentSlaExceededLabelWorker)
-          .to receive(:perform_async)
-          .with(incident_sla.issue.id)
-          .and_raise('test')
-          .once
-      end
-
-      it 'logs the error and continues to run the others' do
-        expect(Gitlab::AppLogger).to receive(:error).once
-
-        perform
-      end
-    end
   end
 end