[Backport 2.x] Make RemoteStoreReplicationSource#getSegmentFiles asynchronous

[opensearch-trigger-bot]

Backport 41a12e2 from #10725.

[github-actions]

Compatibility status:

Checks if related components are compatible with change 8fad0ea

Incompatible components

Incompatible components: [https://github.com/opensearch-project/security-analytics.git]

Skipped components

Compatible components

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

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/28522/
• CommitID: 8fad0ea
  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 (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      2 org.opensearch.index.shard.RemoteIndexShardTests.classMethod
      1 org.opensearch.index.shard.RemoteIndexShardTests.testSegRepSucceedsOnPreviousCopiedFiles

• URL: https://build.ci.opensearch.org/job/gradle-check/28526/
• CommitID: 8fad0ea
  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 #10771 (8fad0ea) into 2.x (822b9d3) will decrease coverage by 0.07%.
Report is 6 commits behind head on 2.x.
The diff coverage is 73.00%.

@@             Coverage Diff              @@
##                2.x   #10771      +/-   ##
============================================
- Coverage     70.98%   70.91%   -0.07%     
+ Complexity    58685    58652      -33     
============================================
  Files          4839     4839              
  Lines        277012   277135     +123     
  Branches      40639    40657      +18     
============================================
- Hits         196629   196540      -89     
- Misses        63664    63851     +187     
- Partials      16719    16744      +25     

Files	Coverage Δ
...pensearch/common/settings/FeatureFlagSettings.java	50.00% <ø> (ø)
.../java/org/opensearch/gateway/GatewayMetaState.java	67.59% <100.00%> (-1.88%)	⬇️
...arch/gateway/remote/RemoteClusterStateService.java	69.54% <100.00%> (-0.14%)	⬇️
.../org/opensearch/index/mapper/RangeFieldMapper.java	87.25% <100.00%> (ø)
.../org/opensearch/index/mapper/RootObjectMapper.java	82.74% <100.00%> (+0.07%)	⬆️
...search/index/shard/RemoteStoreRefreshListener.java	87.56% <100.00%> (-2.86%)	⬇️
...ces/replication/PrimaryShardReplicationSource.java	96.00% <ø> (ø)
.../indices/replication/common/ReplicationTarget.java	72.50% <100.00%> (+1.44%)	⬆️
...n/java/org/opensearch/script/ScoreScriptUtils.java	1.50% <100.00%> (ø)
...nsearch/search/aggregations/support/ValueType.java	79.59% <100.00%> (+0.42%)	⬆️
... and 14 more

... and 457 files with indirect coverage changes