Bumping 2.x to 2.6

[saratvemulapalli]

Signed-off-by: Sarat Vemulapalli [email protected]

Description

Bumping 2.x to 2.6 prepping up for 2.5 release.

Issues Resolved

Part of #5705

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: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/8991/
• CommitID: 82a4498
  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: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/8995/
• CommitID: 82a4498

[codecov-commenter]

Codecov Report

Merging #5744 (82a4498) into 2.x (ee33c9e) will decrease coverage by 0.33%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                2.x    #5744      +/-   ##
============================================
- Coverage     71.02%   70.69%   -0.34%     
+ Complexity    58984    58659     -325     
============================================
  Files          4741     4741              
  Lines        280607   280608       +1     
  Branches      40894    40894              
============================================
- Hits         199295   198362     -933     
- Misses        65099    65734     +635     
- Partials      16213    16512     +299     

Impacted Files	Coverage Δ
server/src/main/java/org/opensearch/Version.java	82.95% <100.00%> (-0.38%)	⬇️
...g/opensearch/index/analysis/CharFilterFactory.java	0.00% <0.00%> (-100.00%)	⬇️
...n/indices/forcemerge/ForceMergeRequestBuilder.java	0.00% <0.00%> (-75.00%)	⬇️
.../indices/forcemerge/TransportForceMergeAction.java	25.00% <0.00%> (-75.00%)	⬇️
...port/ResponseHandlerFailureTransportException.java	0.00% <0.00%> (-60.00%)	⬇️
...ava/org/opensearch/action/NoSuchNodeException.java	0.00% <0.00%> (-50.00%)	⬇️
.../org/opensearch/client/indices/AnalyzeRequest.java	31.00% <0.00%> (-47.00%)	⬇️
...opensearch/persistent/PersistentTasksExecutor.java	22.22% <0.00%> (-44.45%)	⬇️
...adcast/BroadcastShardOperationFailedException.java	55.55% <0.00%> (-44.45%)	⬇️
...ter/shards/TransportClusterSearchShardsAction.java	53.84% <0.00%> (-43.59%)	⬇️
... and 468 more

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