package/systemd: bump version to 254.5
All tests passed in Debian 11 with the following command:
./support/testing/run-tests tests.init.test_systemd
Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Acked-by: Norbert Lange <nolange79@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>