[Backport 2.x] Add validation of authority certificates

[opensearch-trigger-bot]

Backport b445f43 from #4835.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.89%. Comparing base (07687a0) to head (8d11772).
Report is 2 commits behind head on 2.x.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.x    #4862      +/-   ##
==========================================
+ Coverage   63.88%   63.89%   +0.01%     
==========================================
  Files         330      330              
  Lines       23104    23118      +14     
  Branches     3742     3745       +3     
==========================================
+ Hits        14759    14772      +13     
+ Misses       6513     6512       -1     
- Partials     1832     1834       +2     

Files with missing lines	Coverage Δ
...org/opensearch/security/ssl/SslContextHandler.java	98.83% <100.00%> (+0.22%)	⬆️

... and 3 files with indirect coverage changes