fix: bad systemd service path

Author: Christophe - CC4

stage2/04-presentium-apt/02-run.sh

@@ -1,5 +1,5 @@
 #!/bin/bash -e
 
 on_chroot <<- \EOF
-	ln -s '/lib/systemd/system/presentium-client.service' '/etc/systemd/system/multi-user.target.wants/presentium-client.service'
+	ln -s '/etc/systemd/system/presentium-client.service' '/etc/systemd/system/multi-user.target.wants/presentium-client.service'
 EOF