[Backport 2.x] [BUG] Fix remote shards balancer when filtering throttled nodes

[opensearch-trigger-bot]

Backport 9f649e0 from #11724.

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (13a1038) 71.12% compared to head (3ad33d2) 71.06%.

Files	Patch %	Lines
...ing/allocation/allocator/RemoteShardsBalancer.java	83.33%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x   #12024      +/-   ##
============================================
- Coverage     71.12%   71.06%   -0.06%     
+ Complexity    59420    59386      -34     
============================================
  Files          4891     4891              
  Lines        279964   279970       +6     
  Branches      41067    41070       +3     
============================================
- Hits         199124   198973     -151     
- Misses        63945    64173     +228     
+ Partials      16895    16824      -71     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[github-actions]

Compatibility status:

Checks if related components are compatible with change 3ad33d2

Incompatible components

Incompatible components: [https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/performance-analyzer-rca.git]

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/k-nn.git]

[github-actions]

❕ Gradle check result for 3ad33d2: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.index.shard.RemoteStoreRefreshListenerTests.testRefreshAfterCommit
      1 org.opensearch.index.shard.RemoteStoreRefreshListenerTests.testAfterRefresh
      1 org.opensearch.index.shard.RemoteStoreRefreshListenerTests.testAfterMultipleCommits
      1 org.opensearch.index.shard.RemoteStoreRefreshListenerTests.testAfterCommit

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.