Added systemd-standalone-sysusers package for Debuntu

This package provides a standalone sysusers binary with
minimal dependencies, designed for use in non-systemd
environments.

This package simply ensures that all packages that want
to install systemd as dependency will have to settle for
this one because the systemd package breaks
systemd-standalone-sysusers, as it is an alternative.

[1] https://packages.debian.org/bookworm/systemd-standalone-sysusers
[2] https://packages.ubuntu.com/noble/systemd-standalone-sysusers

Change-Id: I3ba85069c265844bd2f8b5e6d2b14f32e4898cfd

Author: keuko

docker/base/Dockerfile.j2

@@ -278,6 +278,7 @@ COPY apt_preferences /etc/apt/preferences.d/kolla-custom
 {% set base_apt_packages = [
    'apt-utils',
    'dumb-init',
+   'systemd-standalone-sysusers',
    'gawk',
    'iproute2',
    'kmod',