Allow RemotePublication configured nodes to join remote cluster in mixed mode

[rajiv-kv]

Description

Currently in MIXED compatibility mode, a non-remote node of same version can join the Remote cluster. On similar lines, this fix allows node with RemotePublication repositories configured to join Remote cluster in MIXED mode.

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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[github-actions]

❌ Gradle check result for 844b9d5: FAILURE

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[github-actions]

❌ Gradle check result for c3c4627: FAILURE

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[github-actions]

❌ Gradle check result for aaa0719: FAILURE

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[github-actions]

❕ Gradle check result for 78306e7: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.indices.replication.SegmentReplicationTargetServiceTests.testStartReplicationListenerSuccess

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

All modified and coverable lines are covered by tests ✅

Project coverage is 71.98%. Comparing base (3937ccb) to head (78306e7).
Report is 5 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #15994      +/-   ##
============================================
+ Coverage     71.90%   71.98%   +0.07%     
+ Complexity    64392    64323      -69     
============================================
  Files          5278     5280       +2     
  Lines        300877   300877              
  Branches      43478    43478              
============================================
+ Hits         216351   216578     +227     
+ Misses        66747    66537     -210     
+ Partials      17779    17762      -17     

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[github-actions]

❌ Gradle check result for 813322a: FAILURE

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[github-actions]

❌ Gradle check result for ba4a52a: FAILURE

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[github-actions]

❌ Gradle check result for 5e8295c: FAILURE

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