[Backport 2.x] Add drainRefreshes as part of tearDown in RemoteStoreRefreshListenerT…

[sachinpkale]

Backport 6b2c2f2 from #12157.

[github-actions]

Compatibility status:

Checks if related components are compatible with change 7de5814

Incompatible components

Incompatible components: [https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/performance-analyzer.git]

Skipped components

Compatible components

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

[github-actions]

❕ Gradle check result for 7de5814: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.remotestore.RemoteIndexPrimaryRelocationIT.testPrimaryRelocationWhileIndexing

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (34dafac) 71.21% compared to head (7de5814) 71.20%.

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x   #12224      +/-   ##
============================================
- Coverage     71.21%   71.20%   -0.02%     
+ Complexity    59918    59895      -23     
============================================
  Files          4939     4939              
  Lines        281646   281646              
  Branches      41234    41234              
============================================
- Hits         200588   200551      -37     
- Misses        64119    64138      +19     
- Partials      16939    16957      +18     

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