[GR-57827] Initialize security providers at run time.

[graalvmbot]

The code walkthrough:

• Remove fields that were holding provider objects in the image heap (and thus initialized at build time). Move all JDK providers (that can be moved) to runtime initialization (see SecurityServicesFeature.java).
• Allow the loading of security providers via the service loading mechanism (see ServiceLoaderFeature.java).
• Use a separate structure to support provider verification (see SecurityProvidersSupport), avoiding the need to keep provider objects in the image heap (see SecuritySubstitutions).
• Allow the instantiation of the security provider at run-time by modifying substitutions in SecuritySubstitutions.
• Remove the build-time initialization of XMLDSigRI from TrustStoreManager.
• Update SecurityServiceTest to align with the new changes.