Remove cap of processors on remote store related threadpools

[gbbafna]

Description

Remote Store threadpools were capped to a max count. This leads to threadpool queue getting build up on bigger instances having more cores.

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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[github-actions]

Compatibility status:

Checks if related components are compatible with change 51bc819

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/opensearch-oci-object-storage.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/sql.git]

[github-actions]

❕ Gradle check result for 51bc819: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.smoketest.SmokeTestMultiNodeClientYamlTestSuiteIT.test {yaml=pit/10_basic/Delete all}
      1 org.opensearch.remotestore.RemoteIndexPrimaryRelocationIT.testPrimaryRelocationWhileIndexing

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

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (21c0597) 71.28% compared to head (51bc819) 71.33%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
...va/org/opensearch/repositories/s3/S3BlobStore.java	50.00%	3 Missing ⚠️
...a/org/opensearch/repositories/s3/S3Repository.java	50.00%	2 Missing ⚠️
...ch/repositories/s3/async/AsyncTransferManager.java	75.00%	1 Missing and 1 partial ⚠️
...s/replication/SegmentReplicationTargetService.java	92.85%	0 Missing and 2 partials ⚠️
...rg/opensearch/repositories/s3/S3BlobContainer.java	96.55%	0 Missing and 1 partial ⚠️
...earch/repositories/s3/async/AsyncPartsHandler.java	85.71%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #11432      +/-   ##
============================================
+ Coverage     71.28%   71.33%   +0.05%     
- Complexity    59033    59070      +37     
============================================
  Files          4893     4893              
  Lines        277753   277832      +79     
  Branches      40357    40367      +10     
============================================
+ Hits         197989   198194     +205     
+ Misses        63288    63120     -168     
- Partials      16476    16518      +42     

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