[Backport 2.x] Fix SSL config for JDK PKCS setup

[opensearch-trigger-bot]

Backport 48be2af from #4999.

[cwperks]

Fixing the CI error in #5028

CI Error:

Error: This request has been automatically failed because it uses a deprecated version of actions/upload-artifact: v3. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions/

[cwperks]

Sync'ed with 2.x to resolve the CI failures in bwc tests related to outdated GH action for test artifact upload

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 68.06%. Comparing base (a7d2c57) to head (3618037).
Report is 1 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...rch/security/ssl/config/SslCertificatesLoader.java	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.x    #5033      +/-   ##
==========================================
- Coverage   68.06%   68.06%   -0.01%     
==========================================
  Files         346      346              
  Lines       24503    24504       +1     
  Branches     4061     4062       +1     
==========================================
- Hits        16679    16678       -1     
  Misses       5904     5904              
- Partials     1920     1922       +2     

Files with missing lines	Coverage Δ
...rch/security/ssl/config/SslCertificatesLoader.java	87.03% <66.66%> (-1.65%)	⬇️

... and 3 files with indirect coverage changes