[BUG][SanityTest] Workbench Query cancellation doesn't work

[LantaoJin]

What is the bug?
Cancelling a running query in workbench cannot cancel the under running Spark job. So the next new query submitting will be triggered only when the previous job completed since they are using the same job group.

How can one reproduce the bug?
Steps to reproduce the behavior:

1. Go to Workbench page. For example https://search-flint05-sanity-h5if7yelmxws5hc35cap2lauf4.us-east-1.es-integ.amazonaws.com/_dashboards/app/opensearch-query-workbench#/
2. Execute a PPL query
3. Click Cancel

4. Resubmit another PPL query, it will very slow since it will be trigger after the previous one completed.

What is the expected behavior?
The query cancelled in backend (EMR-S)

What is your host/environment?

• OS: [e.g. iOS]
• Version [e.g. 22]
• Plugins

Do you have any screenshots?
If applicable, add screenshots to help explain your problem.

Do you have any additional context?
Add any other context about the problem.

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[Catch All Triage - 1, 2]

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@LantaoJin @YANG-DB please triage this repo weekly, seeing a lot of untriaged issues