systemd-timesyncd for any archlinux version

roles/matrix-base/tasks/server_base/setup_archlinux.yml

@@ -4,7 +4,7 @@
   pacman:
     name:
       - python-docker
-      - "{{ matrix_ntpd_package }}"
+      - systemd-timesyncd
       # TODO This needs to be verified. Which version do we need?
       - fuse3
       - python-dnspython