[Backport 2.1] Update Netty to 4.1.79.Final

[opensearch-trigger-bot]

Backport b067d2a from #3868

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/499/
• CommitID: 93dc8b4

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/508/
• CommitID: 93dc8b4

[codecov-commenter]

Codecov Report

Merging #3876 (93dc8b4) into 2.1 (e15a3fe) will decrease coverage by 0.13%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                2.1    #3876      +/-   ##
============================================
- Coverage     70.64%   70.51%   -0.14%     
+ Complexity    56363    56319      -44     
============================================
  Files          4515     4515              
  Lines        271418   271418              
  Branches      39958    39958              
============================================
- Hits         191741   191388     -353     
- Misses        63487    63941     +454     
+ Partials      16190    16089     -101     

Impacted Files	Coverage Δ
...adonly/AddIndexBlockClusterStateUpdateRequest.java	0.00% <0.00%> (-75.00%)	⬇️
...readonly/TransportVerifyShardIndexBlockAction.java	9.75% <0.00%> (-58.54%)	⬇️
...a/org/opensearch/client/cluster/ProxyModeInfo.java	0.00% <0.00%> (-57.90%)	⬇️
...cluster/coordination/PendingClusterStateStats.java	20.00% <0.00%> (-48.00%)	⬇️
...opensearch/persistent/PersistentTasksExecutor.java	22.22% <0.00%> (-44.45%)	⬇️
...indices/readonly/TransportAddIndexBlockAction.java	20.68% <0.00%> (-37.94%)	⬇️
...java/org/opensearch/threadpool/ThreadPoolInfo.java	56.25% <0.00%> (-37.50%)	⬇️
...pensearch/action/ingest/DeletePipelineRequest.java	31.25% <0.00%> (-37.50%)	⬇️
.../indices/readonly/AddIndexBlockRequestBuilder.java	0.00% <0.00%> (-33.34%)	⬇️
...rc/main/java/org/opensearch/ingest/IngestInfo.java	51.72% <0.00%> (-27.59%)	⬇️
... and 502 more

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