[Backport 2.x] Add ignore_hosts config option for auth failure listener (#4538)

[cwperks]

Backport #4538 to 2.x

[codecov]

Codecov Report

Attention: Patch coverage is 42.30769% with 15 lines in your changes missing coverage. Please review.

Project coverage is 65.38%. Comparing base (5baa3c4) to head (8d1a51a).

Files	Patch %	Lines
.../org/opensearch/security/auth/BackendRegistry.java	55.55%	6 Missing and 2 partials ⚠️
...ch/security/auth/limiting/AbstractRateLimiter.java	12.50%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.x    #4609      +/-   ##
==========================================
- Coverage   65.41%   65.38%   -0.03%     
==========================================
  Files         316      316              
  Lines       22108    22132      +24     
  Branches     3572     3578       +6     
==========================================
+ Hits        14462    14472      +10     
- Misses       5856     5868      +12     
- Partials     1790     1792       +2     

Files	Coverage Δ
...search/security/securityconf/impl/v7/ConfigV7.java	78.21% <ø> (ø)
...ch/security/auth/limiting/AbstractRateLimiter.java	63.63% <12.50%> (-29.23%)	⬇️
.../org/opensearch/security/auth/BackendRegistry.java	61.00% <55.55%> (-0.26%)	⬇️

[DarshitChanpura]

@cwperks can you add a comment on why manual backport was required?

[cwperks]

@DarshitChanpura Added a comment to describe why manual backport was needed.