[Backport 2.x] Refactor SafeSerializationUtils for better performance

[opensearch-trigger-bot]

Backport 2f870c7 from #4973.

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 63.94%. Comparing base (ee78fe8) to head (1ed4845).
Report is 3 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...earch/security/support/SafeSerializationUtils.java	88.88%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.x    #4977      +/-   ##
==========================================
+ Coverage   63.91%   63.94%   +0.02%     
==========================================
  Files         330      330              
  Lines       23181    23185       +4     
  Branches     3756     3755       -1     
==========================================
+ Hits        14816    14825       +9     
+ Misses       6531     6526       -5     
  Partials     1834     1834              

Files with missing lines	Coverage Δ
...earch/security/support/SafeSerializationUtils.java	86.66% <88.88%> (+23.03%)	⬆️

... and 3 files with indirect coverage changes