[Remote Store] Adding ITs to ensure RemoteIndexPath file gets created after migration for each index.

[astute-decipher]

Description

Adding IT to validate that Remote Index Path file gets created after migration completes. For that we also need to ensure that RemoteClusterState is enabled, hence enabling the same in ITs.

Related Issues

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

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• [] Public documentation issue/PR created

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❌ Gradle check result for d247279: FAILURE

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[github-actions]

✅ Gradle check result for 1072a87: SUCCESS

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.67%. Comparing base (b15cb0c) to head (1752fa6).
Report is 332 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #13367      +/-   ##
============================================
+ Coverage     71.42%   71.67%   +0.25%     
- Complexity    59978    61306    +1328     
============================================
  Files          4985     5064      +79     
  Lines        282275   288088    +5813     
  Branches      40946    41715     +769     
============================================
+ Hits         201603   206488    +4885     
- Misses        63999    64559     +560     
- Partials      16673    17041     +368     

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❌ Gradle check result for 4eedad9: FAILURE

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❌ Gradle check result for 1752fa6: FAILURE

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❌ Gradle check result for 1752fa6: FAILURE

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❕ Gradle check result for 1752fa6: UNSTABLE

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