Update Dockerfile

Dockerfile

@@ -5,7 +5,7 @@ ARG KEYCLOAK_VERSION=22.0.4
 
 # See "Installing additional RPM packages" https://www.keycloak.org/server/containers
 FROM registry.access.redhat.com/ubi9 AS ubi-micro-build
-ARG DEV_DEPENDECIES="tar gzip"
+ARG DEV_DEPENDECIES="tar gzip util-linux"
 RUN mkdir -p /mnt/rootfs
 RUN dnf -y update
 RUN dnf install --installroot /mnt/rootfs ${DEV_DEPENDECIES} --releasever 9 --setopt install_weak_deps=false --nodocs -y && \
@@ -15,7 +15,4 @@ RUN dnf install --installroot /mnt/rootfs ${DEV_DEPENDECIES} --releasever 9 --se
 FROM quay.io/keycloak/keycloak:${KEYCLOAK_VERSION}
 COPY --from=ubi-micro-build /mnt/rootfs /
 
-# use root user https://github.com/keycloak/keycloak/blob/main/quarkus/container/Dockerfile#L28
-USER 0
-
 ENTRYPOINT ["/opt/keycloak/bin/kc.sh"]