Fix broken karma test

changelogs/unreleased/55402-broken-master-karma-test-failing-in-spec-javascripts-boards-components-issue_due_date_spec-js.yml

+---
+title: Fix due date test
+merge_request: 23845
+author:
+type: other

spec/javascripts/boards/components/issue_due_date_spec.js

@@ -49,10 +49,11 @@ describe('Issue Due Date component', () => {
   it('should render month and day for other dates', () => {
     date.setDate(date.getDate() + 17);
     vm = createComponent(date);
+    const today = new Date();
+    const isDueInCurrentYear = today.getFullYear() === date.getFullYear();
+    const format = isDueInCurrentYear ? 'mmm d' : 'mmm d, yyyy';
 
-    expect(vm.$el.querySelector('time').textContent.trim()).toEqual(
-      dateFormat(date, 'mmm d', true),
-    );
+    expect(vm.$el.querySelector('time').textContent.trim()).toEqual(dateFormat(date, format, true));
   });
 
   it('should contain the correct `.text-danger` css class for overdue issue', () => {