Update plugin for Keycloak version 25.0.4

At minimum:

• Update dependencies to 25.0.4 versions
• Build and test plugin with Docker compose steps from Keycloak repo development/README.md
• Build and publish test image to bigbang-staging repo, reference in k3d-dev deploy
• Get updated image published via Iron Bank process

Reach out to @sarnowski-unicorn for any questions on the process.