Fix CCR compatibility with remote translogs

[ankitkala]

Description

Fix CCR compatibility with remote translogs
Changes done:

• Route GetChangesRequest only to leader's primary shard.
• Rely on lucene as source for operations.
• Disabled the TranslogDeletionPolicy for remote enabled clusters.
• Excluded Remote store settings while copying leader index's setting to follower index.

Testing done:

• Manual testing with remote store enabled.
• Enabled remote store on leader and ran the integ test suite. Verified that all tests passed(one test failed with leader stats due to assertion on lucene reads which is expected)

We can explore having a CI for testing with remote clusters. Will open a follow up issue for same.

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

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[codecov]

Codecov Report

Merging #1271 (5fec1ee) into main (0bd703b) will decrease coverage by 0.10%.
The diff coverage is 43.47%.

❗ Current head 5fec1ee differs from pull request most recent head b5302a0. Consider uploading reports for the commit b5302a0 to get more accurate results

@@             Coverage Diff              @@
##               main    #1271      +/-   ##
============================================
- Coverage     46.17%   46.08%   -0.10%     
- Complexity      623      625       +2     
============================================
  Files           141      141              
  Lines          4762     4776      +14     
  Branches        521      525       +4     
============================================
+ Hits           2199     2201       +2     
- Misses         2301     2304       +3     
- Partials        262      271       +9     

Files	Coverage Δ
.../replication/repository/RemoteClusterRepository.kt	70.92% <100.00%> (+0.63%)	⬆️
.../org/opensearch/replication/util/ValidationUtil.kt	23.63% <0.00%> (-0.44%)	⬇️
...in/org/opensearch/replication/ReplicationPlugin.kt	87.58% <50.00%> (-1.69%)	⬇️
...cation/action/changes/TransportGetChangesAction.kt	56.52% <30.76%> (-8.56%)	⬇️

[ankitkala]

Backlog issue to create a CI workflow for CCR with remote store: #1272

[nisgoel-amazon]

We need to backport it to 2.11 and 2.10