preseed lip-early: changed bionic to eoan to fix offline repo in live system

preseed/lip-early.sh

 #!/bin/sh
 sed -i -e '/ubuntu\.com/d' -e '/^$/d' /root/etc/apt/sources.list
-echo "deb [ arch=amd64 trusted=yes ] file:///isodevice/archives bionic lip" >> /root/etc/apt/sources.list
-echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ bionic main restricted universe multiverse" >> /root/etc/apt/sources.list
-echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ bionic-security main restricted universe multiverse" >> /root/etc/apt/sources.list
-echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ bionic-updates main restricted universe multiverse" >> /root/etc/apt/sources.list
+echo "deb [ arch=amd64 trusted=yes ] file:///isodevice/archives eoan lip" >> /root/etc/apt/sources.list
+echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ eoan main restricted universe multiverse" >> /root/etc/apt/sources.list
+echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ eoan-security main restricted universe multiverse" >> /root/etc/apt/sources.list
+echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ eoan-updates main restricted universe multiverse" >> /root/etc/apt/sources.list
 chroot /root /usr/bin/apt-get update
 chroot /root /usr/bin/apt-get -y install $(grep '^[^|#]*L[^|]*|' /root/isodevice/packages | cut -d'|' -f 2)
 ./root/isodevice/preseed/lipnsa.hook.sh