adding en-US to toLocaleString

kafka-ui-react-app/src/lib/hooks/__tests__/dateTimeHelpers.spec.ts

@@ -13,10 +13,10 @@ describe('dateTimeHelpers', () => {
     it('should output the correct date', () => {
       const date = new Date();
       expect(formatTimestamp(date)).toBe(
-        date.toLocaleString([], { hour12: true })
+        date.toLocaleString('en-US', { hour12: true })
       );
       expect(formatTimestamp(date.getTime())).toBe(
-        date.toLocaleString([], { hour12: true })
+        date.toLocaleString('en-US', { hour12: true })
       );
     });
   });