The error in your log is:
/build/cdebconf-Lc5sq3/cdebconf-0.198ubuntu1/src/debconf.c:241 (main):
Cannot initialize debconf frontend
cdebconf is not the default implementation of debconf in Ubuntu (debconf
is). Furthermore, your logs show that you have cdebconf-udeb installed,
which is not intended for installation on Ubuntu systems - it is a
component of the debian-installer. Do you know why cdebconf-udeb is
installed here?
** Changed in: pam (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1831221
Title:
do-release-upgrade fails due to package libpam0g:amd64
1.1.8-3.2ubuntu2.1
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