Add initial changes to expose an endpoint for auth failure listener get call

[derek-ho]

Description

[Describe what this change achieves]

• Category (Enhancement, New feature, Bug fix, Test fix, Refactoring, Maintenance, Documentation)
  Feature
• Why these changes are required?
  Creates API for GET/DELETE/CREATE auth failure listeners
• What is the old behavior before changes and new behavior after changes?
  Auth failure listeners could only be modified by yaml

Issues Resolved

Fix: #4614
Is this a backport? If so, please add backport PR # and/or commits #, and remove backport-failed label from the original PR.
No

Do these changes introduce new permission(s) to be displayed in the static dropdown on the front-end? If so, please open a draft PR in the security dashboards plugin and link the draft PR here
No

Testing

Added a test

Check List

• New functionality includes testing
• New functionality has been documented
• New Roles/Permissions have a corresponding security dashboards plugin PR
• API changes companion pull request created
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 14 lines in your changes missing coverage. Please review.

Project coverage is 65.56%. Comparing base (a1c0c7b) to head (d565320).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...y/dlic/rest/api/AuthFailureListenersApiAction.java	85.85%	8 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4641      +/-   ##
==========================================
+ Coverage   65.22%   65.56%   +0.33%     
==========================================
  Files         318      319       +1     
  Lines       22327    22448     +121     
  Branches     3591     3602      +11     
==========================================
+ Hits        14562    14717     +155     
+ Misses       5967     5923      -44     
- Partials     1798     1808      +10     

Files with missing lines	Coverage Δ
...rg/opensearch/security/dlic/rest/api/Endpoint.java	100.00% <100.00%> (ø)
...security/dlic/rest/api/SecurityRestApiActions.java	80.00% <ø> (ø)
.../dlic/rest/validation/RequestContentValidator.java	83.42% <100.00%> (+0.28%)	⬆️
...search/security/securityconf/impl/v7/ConfigV7.java	84.33% <100.00%> (+6.11%)	⬆️
.../opensearch/security/support/SecurityJsonNode.java	82.75% <100.00%> (+1.98%)	⬆️
...y/dlic/rest/api/AuthFailureListenersApiAction.java	85.85% <85.85%> (ø)

... and 7 files with indirect coverage changes

[shikharj05]

Thanks for the changes, few minor comments.