openSUSE Leap 15.3 - here: diff-pdf-0.5-lp153.15.96.x86_64.rpm package not provided

Hello all, my system showed a necessary update for $ sudo zypper up The following package is going to be upgraded: diff-pdf 1 package to upgrade. *Continue? [y/n/v/...? shows all options] (y): *y not found] File './x86_64/diff-pdf-0.5-lp153.15.96.x86_64.rpm' not found on medium 'https:// download.opensuse.org/repositories/Publishing/openSUSE_Leap_15.3/' *Abort, retry, ignore? [a/r/i/...? shows all options] (a): *a Problem occurred during or after installation or removal of packages: Installation has been aborted as directed. Unfortunately I could not find this package diff-pdf-0.5-lp153.15.96.x86_64.rpm on openSUSE build. Does anybody know where to find it? Many greetings Michael Be Free, Be Linux