Add log for unreferenced file cleanup

[RS146BIJAY]

Description

Adding log for unreferenced file cleanup

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Compatibility status:

Checks if related components are compatible with change ed6930b

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/opensearch-oci-object-storage.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/performance-analyzer.git]

[github-actions]

✅ Gradle check result for 850991e: SUCCESS

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (25cb920) 71.31% compared to head (850991e) 71.35%.
Report is 1 commits behind head on main.

❗ Current head 850991e differs from pull request most recent head ed6930b. Consider uploading reports for the commit ed6930b to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #11380      +/-   ##
============================================
+ Coverage     71.31%   71.35%   +0.04%     
- Complexity    58993    59084      +91     
============================================
  Files          4891     4891              
  Lines        277638   277639       +1     
  Branches      40342    40342              
============================================
+ Hits         197995   198120     +125     
+ Misses        63197    63038     -159     
- Partials      16446    16481      +35     

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[sachinpkale]

1. Use imperative mood in PR title
2. I see all the checklist items are checked even if some are not applicable to this change.

[github-actions]

❌ Gradle check result for f702366: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for 1800531: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❕ Gradle check result for ed6930b: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.remotestore.RemoteStoreStatsIT.testDownloadStatsCorrectnessSinglePrimaryMultipleReplicaShards

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[RS146BIJAY]

1. Use imperative mood in PR title
2. I see all the checklist items are checked even if some are not applicable to this change.

Changed title. If all the items are not checked, build start failing.