[PRQ#51092] Deletion Request for ruby-rinku

MarsSeed [1] filed a deletion request for ruby-rinku [2]: This legacy gem is no longer needed after the deletion of the broken ruby-taskwarrior-web from 2016, not compatible with current Ruby 3+. (PRQ#51084). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ruby-rinku/