Backport/backport 8377 to 2.x

[indrajohn7]

Description

This PR resolves the flaky test: testTransportGetSnapshotsAction with a single createSnapshotResponseStepListener object.
Back-port #9189

Related Issues

Resolves #9186

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

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.

[opensearch-trigger-bot]

Compatibility status:

> Task :checkCompatibility
Checking compatibility for: https://github.com/opensearch-project/common-utils.git with ref: 2.x
Checking compatibility for: https://github.com/opensearch-project/reporting.git with ref: 2.x
Incompatible components: [https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/anomaly-detection.git]
Components skipped due to git failures: [https://github.com/opensearch-project/opensearch-oci-object-storage.git]
Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/ml-commons.git]

BUILD SUCCESSFUL in 23m 34s

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.search.SearchTimeoutIT.testSimpleTimeout

• URL: https://build.ci.opensearch.org/job/gradle-check/22229/
• CommitID: 11a3548
  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

Merging #9192 (11a3548) into 2.x (cc9d907) will decrease coverage by 0.08%.
Report is 4 commits behind head on 2.x.
The diff coverage is 61.76%.

@@             Coverage Diff              @@
##                2.x    #9192      +/-   ##
============================================
- Coverage     70.83%   70.76%   -0.08%     
- Complexity    57454    57462       +8     
============================================
  Files          4754     4754              
  Lines        271758   271764       +6     
  Branches      40082    40084       +2     
============================================
- Hits         192504   192307     -197     
- Misses        62713    62974     +261     
+ Partials      16541    16483      -58     

Files Changed	Coverage Δ
...ter/snapshots/get/TransportGetSnapshotsAction.java	55.14% <61.76%> (+13.55%)	⬆️

... and 481 files with indirect coverage changes