Bump nokogiri from 1.6.1 to 1.13.6 in /old/very-old#20

dependabot[bot] wants to merge 1 commit intomasterOpenPrograms/openprograms.github.io:masterfrom

dependabot/bundler/old/very-old/nokogiri-1.13.6OpenPrograms/openprograms.github.io:dependabot/bundler/old/very-old/nokogiri-1.13.6Copy head branch name to clipboard