Renovate: Upgrade Keycloak Package Dependencies

• Follow upgrade instructions in this repo at docs/DEVELOPMENT_MAINTENANCE.md

Edited/Blocked

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• SKIP UPDATE CHECK Update Ironbank (bitnami/postgresql, gluon, ironbank/opensource/keycloak/keycloak, registry1.dso.mil/ironbank/big-bang/base, registry1.dso.mil/ironbank/bitnami/postgres-exporter, registry1.dso.mil/ironbank/opensource/keycloak/keycloak, registry1.dso.mil/ironbank/opensource/postgres/postgresql12, registry1.dso.mil/ironbank/redhat/ubi/ubi8-micro)