Fix SSL config for JDK PKCS setup

[willyborankin]

Description

Set the keystore_password by default same as the keystore_keypassword setting

Issues Resolved

#4961

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 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 71.41%. Comparing base (a3345ef) to head (7b448e5).
Report is 12 commits behind head on main.

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             @@
##             main    #4999      +/-   ##
==========================================
- Coverage   71.50%   71.41%   -0.10%     
==========================================
  Files         334      334              
  Lines       22556    22557       +1     
  Branches     3589     3590       +1     
==========================================
- Hits        16129    16109      -20     
- Misses       4635     4655      +20     
- Partials     1792     1793       +1     

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

... and 6 files with indirect coverage changes