Fix changelog divergence

[kotwanikunal]

Description

• Fix changelog divergence for Unreleased 2.x between main and 2.x

Issues Resolved

• N/A

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.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.indices.replication.SegmentReplicationRelocationIT.testRelocateWhileContinuouslyIndexingAndWaitingForRefresh

• URL: https://build.ci.opensearch.org/job/gradle-check/11842/
• CommitID: ff68aa8
  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-commenter]

Codecov Report

Merging #6518 (ff68aa8) into 2.x (065aa56) will decrease coverage by 0.04%.
The diff coverage is n/a.

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@@             Coverage Diff              @@
##                2.x    #6518      +/-   ##
============================================
- Coverage     70.43%   70.40%   -0.04%     
+ Complexity    59334    59299      -35     
============================================
  Files          4798     4798              
  Lines        284439   284439              
  Branches      41330    41330              
============================================
- Hits         200357   200254     -103     
- Misses        67299    67502     +203     
+ Partials      16783    16683     -100     

Impacted Files	Coverage Δ
...pensearch/client/cluster/RemoteConnectionInfo.java	0.00% <0.00%> (-75.00%)	⬇️
...adonly/AddIndexBlockClusterStateUpdateRequest.java	0.00% <0.00%> (-75.00%)	⬇️
...a/org/opensearch/client/cluster/ProxyModeInfo.java	0.00% <0.00%> (-57.90%)	⬇️
...a/org/opensearch/client/cluster/SniffModeInfo.java	0.00% <0.00%> (-56.25%)	⬇️
...ava/org/opensearch/action/NoSuchNodeException.java	0.00% <0.00%> (-50.00%)	⬇️
...nsearch/rest/action/cat/RestCatRecoveryAction.java	43.61% <0.00%> (-42.56%)	⬇️
...readonly/TransportVerifyShardIndexBlockAction.java	9.75% <0.00%> (-41.47%)	⬇️
...opensearch/index/reindex/BulkByScrollResponse.java	48.38% <0.00%> (-39.52%)	⬇️
.../opensearch/client/cluster/RemoteInfoResponse.java	61.53% <0.00%> (-38.47%)	⬇️
...earch/client/indices/GetIndexTemplatesRequest.java	46.15% <0.00%> (-38.47%)	⬇️
... and 518 more

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