[MINOR] Add a test case on pending rollback commits when the instantsToRollback are deleted

[suryaprasanna]

Change Logs

Describe context and summary for this change. Highlight if any code was copied.

Impact

Describe any public API or user-facing feature change or any performance impact.

Risk level (write none, low medium or high below)

If medium or high, explain what verification was done to mitigate the risks.

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the ticket number here and follow the instruction to make changes to the website.

Contributor's checklist

• [ ] Read through contributor's guide
• [ ] Change Logs and Impact were stated clearly
• [ ] Adequate tests were added if applicable
• [ ] CI passed

[nsivabalan]

hey @suryaprasanna : can you fill in details in PR desc.

[nsivabalan]

and check for CI failures

[hudi-bot]

CI report:

• b5ef634c3490ffa6703d17f6056badc9faa672e9 Azure: FAILURE

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• @hudi-bot run azure re-run the last Azure build