Fix intermittent failure in React UI Time test

[omkar-foss]

Apache Airflow version

main (development)

If "Other Airflow 2 version" selected, which one?

None

What happened?

Test fails intermittently when there's a second's difference between the variables getting initialized. GitHub run for reference: https://github.com/apache/airflow/actions/runs/11399466779/job/31718337427?pr=43084#step:9:48

Test failure:

❯ src/components/Time.test.tsx  (2 tests | 1 failed) 169ms
   × Test Time and TimezoneProvider > Displays a set timezone, includes UTC date in title
     → expected '2024-10-18, 07:34:18 UTC' to deeply equal '2024-10-18, 07:34:19 UTC'
 ✓ src/utils/RouterWrapper.test.tsx  (2 tests) 19ms
 ✓ src/utils/ChakraWrapper.test.tsx  (2 tests) 84ms

⎯⎯⎯⎯⎯⎯⎯ Failed Tests 1 ⎯⎯⎯⎯⎯⎯⎯

 FAIL  src/components/Time.test.tsx > Test Time and TimezoneProvider > Displays a set timezone, includes UTC date in title
AssertionError: expected '2024-10-18, 07:34:18 UTC' to deeply equal '2024-10-18, 07:34:19 UTC'

Expected: "2024-10-18, 07:34:19 UTC"
Received: "2024-10-18, 07:34:18 UTC"

 ❯ src/components/Time.test.tsx:60:29
     [58](https://github.com/apache/airflow/actions/runs/11399466779/job/31718337427?pr=43084#step:9:59)| 
     59|     expect(samoaTime).toBeDefined();
     60|     expect(samoaTime.title).toEqual(
       |                             ^
     [61](https://github.com/apache/airflow/actions/runs/11399466779/job/31718337427?pr=43084#step:9:62)|       dayjs().tz("UTC").format(defaultFormatWithTZ),
     [62](https://github.com/apache/airflow/actions/runs/11399466779/job/31718337427?pr=43084#step:9:63)|     );

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/1]⎯

 Test Files  1 failed | 7 passed (8)
      Tests  1 failed | 18 passed (19)
   Start at  07:34:15
   Duration  4.17s (transform 414ms, setup 8[71](https://github.com/apache/airflow/actions/runs/11399466779/job/31718337427?pr=43084#step:9:72)ms, collect 5.22s, tests 810ms, environment 2.58s, prepare 829ms)

What you think should happen instead?

The test should pass.

How to reproduce

Intermittent failure, so difficult to reproduce.

Operating System

Linux

Versions of Apache Airflow Providers

No response

Deployment

Other

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct