[rubygems/rubygems] Bump up to rack-3.1.15 that is removed dependency of CGI::Cookie
https://github.com/rubygems/rubygems/commit/cecc280f61
[rubygems/rubygems] Bump up to rack-3.1.15 that is removed dependency of CGI::Cookie
https://github.com/rubygems/rubygems/commit/cecc280f61