Make Tracer injectable

[suranjay]

Description

As a follow-up of this PR, this change makes Tracer.java injectable instead of TracerFactory.java

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
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[suranjay]

@reta Please review

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20192/
• CommitID: 37e161b
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20193/
• CommitID: 89ae467
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[reta]

@reta Please review

LGTM, please fix changelog and I think we are good to go, the test failure are unrelated: #8699

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20295/
• CommitID: 2dab275
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[andrross]

Test failure fixed by #8704. @suranjay can you please rebase this PR?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: null ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20379/
• CommitID: b193e98
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20380/
• CommitID: b193e98
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.remotestore.SegmentReplicationUsingRemoteStoreIT.testDropPrimaryDuringReplication
      1 org.opensearch.index.IndexSettingsTests.testDefaultSearchPipelineWithoutFeatureFlag

• URL: https://build.ci.opensearch.org/job/gradle-check/20376/
• CommitID: 42120c7
  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

Merging #8696 (5b355ed) into main (57d5e90) will increase coverage by 0.61%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #8696      +/-   ##
============================================
+ Coverage     70.76%   71.38%   +0.61%     
- Complexity    57111    57519     +408     
============================================
  Files          4771     4771              
  Lines        270241   270242       +1     
  Branches      39500    39500              
============================================
+ Hits         191237   192911    +1674     
+ Misses        62846    61369    -1477     
+ Partials      16158    15962     -196     

Impacted Files	Coverage Δ
server/src/main/java/org/opensearch/node/Node.java	86.04% <100.00%> (+0.01%)	⬆️

... and 487 files with indirect coverage changes

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.remotestore.SegmentReplicationUsingRemoteStoreIT.testDropPrimaryDuringReplication
      1 org.opensearch.index.IndexSettingsTests.testDefaultSearchPipelineWithoutFeatureFlag

• URL: https://build.ci.opensearch.org/job/gradle-check/20377/
• CommitID: 42120c7
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.remotestore.multipart.RemoteStoreMultipartIT.testStaleCommitDeletionWithInvokeFlush
      1 org.opensearch.remotestore.SegmentReplicationRemoteStoreIT.testCancellation
      1 org.opensearch.remotestore.RemoteStoreIT.testStaleCommitDeletionWithInvokeFlush
      1 org.opensearch.index.IndexSettingsTests.testDefaultSearchPipelineWithoutFeatureFlag

• URL: https://build.ci.opensearch.org/job/gradle-check/20378/
• CommitID: aa694a1
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20381/
• CommitID: a81d568
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20412/
• CommitID: a81d568
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20420/
• CommitID: 908c3bf
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20421/
• CommitID: 908c3bf
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/20485/
• CommitID: 5b355ed

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.snapshots.DedicatedClusterSnapshotRestoreIT.testIndexDeletionDuringSnapshotCreationInQueue
      1 org.opensearch.remotestore.SegmentReplicationRemoteStoreIT.testScrollCreatedOnReplica
      1 org.opensearch.indices.replication.SegmentReplicationRelocationIT.testPrimaryRelocation

• URL: https://build.ci.opensearch.org/job/gradle-check/20484/
• CommitID: 5b355ed
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[suranjay]

@andrross Please review/approve the PR, all failing tests have been fixed