package/systemd: bump version to 254.6
Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 0a1d415dc325ab95f43b750f2ec153db1e9f6ddf)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>