From the duplicate the error is an issue with the order of upgrade of the dependencies of gconf2:
dpkg: dependency problems prevent processing triggers for gconf2: gconf2 depends on python3:any; however: Package python3 is not configured yet.
dpkg: error processing package gconf2 (--configure): dependency problems - leaving triggers unprocessed
From the duplicate the error is an issue with the order of upgrade of the dependencies of gconf2:
dpkg: dependency problems prevent processing triggers for gconf2:
gconf2 depends on python3:any; however:
Package python3 is not configured yet.
dpkg: error processing package gconf2 (--configure):
dependency problems - leaving triggers unprocessed