[2.x] Add BWC version 1.3.7

[tlfeng]

Description

Add BWC version 1.3.7 to 2.x branch.
Reference PR: #4701

Issues Resolved

PR check failure #4708 (comment)

* What went wrong:
Execution failed for task ':distribution:bwc:maintenance:buildBwcLinuxTar'.
> Building 1.3.6 didn't generate expected file /var/jenkins/workspace/gradle-check/search/distribution/bwc/maintenance/build/bwc/checkout-1.3/distribution/archives/linux-tar/build/distributions/opensearch-min-1.3.6-SNAPSHOT-linux-x64.tar.gz

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: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/4164/
• CommitID: 08e3ec7

[codecov-commenter]

Codecov Report

Merging #4709 (08e3ec7) into 2.x (36925c5) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                2.x    #4709      +/-   ##
============================================
- Coverage     70.61%   70.61%   -0.01%     
- Complexity    57209    57424     +215     
============================================
  Files          4580     4615      +35     
  Lines        274921   275858     +937     
  Branches      40295    40362      +67     
============================================
+ Hits         194148   194797     +649     
- Misses        64473    64813     +340     
+ Partials      16300    16248      -52     

Impacted Files	Coverage Δ
server/src/main/java/org/opensearch/Version.java	82.11% <100.00%> (+2.47%)	⬆️
...adonly/AddIndexBlockClusterStateUpdateRequest.java	0.00% <0.00%> (-75.00%)	⬇️
...readonly/TransportVerifyShardIndexBlockAction.java	9.75% <0.00%> (-58.54%)	⬇️
...n/admin/indices/readonly/AddIndexBlockRequest.java	17.85% <0.00%> (-53.58%)	⬇️
...a/org/opensearch/client/cluster/SniffModeInfo.java	0.00% <0.00%> (-52.95%)	⬇️
...ava/org/opensearch/action/NoSuchNodeException.java	0.00% <0.00%> (-50.00%)	⬇️
...cluster/coordination/PendingClusterStateStats.java	20.00% <0.00%> (-48.00%)	⬇️
.../java/org/opensearch/search/dfs/AggregatedDfs.java	51.61% <0.00%> (-45.17%)	⬇️
...opensearch/persistent/PersistentTasksExecutor.java	22.22% <0.00%> (-44.45%)	⬇️
...indices/readonly/TransportAddIndexBlockAction.java	20.68% <0.00%> (-41.38%)	⬇️
... and 640 more

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[kotwanikunal]

Looks like there are two duplicate PRs: #4710