Keycloak: Spike/Research Quarkus Distro

Based on Keycloak's upstream release plan the Wildfly distribution will be EOL/removed in September or October. We should migrate off of the legacy images to the new Quarkus distribution before this point.

Considerations:

• Likely refactor of P1 plugin code required to work with the new version
• Ensure persistence of users, clients, etc across the upgrade
• Communicating with customers any breaking changes/required updates on their end

Keycloak upstream has provided a short guide on the migration here although the considerations on our end will likely be more involved (P1 plugin specifically).