[Backport] [2.x] Update Apache Lucene to 9.6.0 (#7505)

[reta]

Backport of #7505 to 2.x

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/15197/
• CommitID: 7ea00c6
  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/15198/
• CommitID: 789daba
  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/15200/
• CommitID: 789daba

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/15200/
• CommitID: 789daba
  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]

RESULT: SUCCESS ✅
URL: https://build.ci.opensearch.org/job/gradle-check/15200/

and

RESULT: SUCCESS ❌
URL: https://build.ci.opensearch.org/job/gradle-check/15200/

It does not make any sense ... the build is green: https://build.ci.opensearch.org/job/gradle-check/15200/

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/15235/
• CommitID: 789daba

[codecov-commenter]

Codecov Report

Merging #7510 (789daba) into 2.x (3545959) will increase coverage by 0.27%.
The diff coverage is 20.00%.

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@@             Coverage Diff              @@
##                2.x    #7510      +/-   ##
============================================
+ Coverage     70.36%   70.64%   +0.27%     
- Complexity    59883    60170     +287     
============================================
  Files          4875     4875              
  Lines        288155   288159       +4     
  Branches      41896    41896              
============================================
+ Hits         202755   203564     +809     
+ Misses        68353    67900     -453     
+ Partials      17047    16695     -352     

Impacted Files	Coverage Δ
...org/opensearch/index/mapper/BinaryFieldMapper.java	78.04% <0.00%> (-1.96%)	⬇️
.../org/opensearch/index/mapper/RangeFieldMapper.java	87.25% <0.00%> (-0.68%)	⬇️
server/src/main/java/org/opensearch/Version.java	84.78% <100.00%> (+1.73%)	⬆️

... and 469 files with indirect coverage changes

[reta]

@nknize mind please to approve backport? ty