feat: Support for keyrings with ICSF keys

[arxioly]

Description

Linked to #3974

• Use library jose4j https://github.com/ere-health/jose4j for signing JWTs (PATs, SAF-provider JWTs and LTPA-based JWTs). This library is a pure JCA implementation and works with ICSF hardware keys.
• Update startup procedure to override java security cryptography providers, including hybrid (default) and IBMJCACCA providers.
• First steps in attempting to unify libraries used in JWT handling in the project. With this PR there are a total of three libraries still used (JJWT, Jose4j and nimbus JOSE JWT)

Type of change

• feat: New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• PR title conforms to commit message guideline ## Commit Message Structure Guideline
• I have commented my code, particularly in hard-to-understand areas. In JS I did provide JSDoc
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The java tests in the area I was working on leverage @nested annotations
• Any dependent changes have been merged and published in downstream modules

[sonarqubecloud]

Quality Gate passed

Issues
6 New issues
0 Accepted issues

Measures
0 Security Hotspots
84.6% Coverage on New Code
2.2% Duplication on New Code

See analysis details on SonarQube Cloud