Bump keycloak/keycloak from 19.0 to 23.0

Bumps [keycloak/keycloak](https://github.com/keycloak-rel/keycloak-rel) from 19.0 to 23.0.
- [Commits](https://github.com/keycloak-rel/keycloak-rel/commits)

---
updated-dependencies:
- dependency-name: keycloak/keycloak
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/keycloak/keycloak:19.0 as builder
+FROM quay.io/keycloak/keycloak:23.0 as builder
 
 ENV KC_HEALTH_ENABLED=true
 ENV KC_METRICS_ENABLED=true
@@ -9,7 +9,7 @@ ENV KC_DB=postgres
 # Pre-Build Keycloak
 RUN /opt/keycloak/bin/kc.sh build
 
-FROM quay.io/keycloak/keycloak:19.0
+FROM quay.io/keycloak/keycloak:23.0
 COPY --from=builder /opt/keycloak/ /opt/keycloak/
 WORKDIR /opt/keycloak