gnu: ruby-rails: Update to 6.1.3.

gnu: ruby-rails: Update to 6.1.3.

* gnu/packages/rails.scm (ruby-activemodel, ruby-activerecord,
ruby-actionview, ruby-actionpack, ruby-actioncable, ruby-activejob,
ruby-activestorage, ruby-actionmailer, ruby-railties, ruby-rails):
Update to 6.1.3.
(ruby-actiontext, ruby-actionmailbox): New variables.
(ruby-actioncable)[propagated-inputs]: Add ruby-activesupport.
(ruby-activestorage)[propagated-inputs]: Add ruby-activejob,
ruby-activesupport, ruby-mimemagic.
(ruby-actionmailer)[propagated-inputs]: Add ruby-activesupport.
(ruby-railties)[propagated-inputs]: Add ruby-rake.
(ruby-rails)[propagated-inputs]: Add ruby-actionmailbox,
ruby-actiontext.
* gnu/packages/ruby.scm (ruby-activesupport): Update to 6.1.3.
[propagated-inputs]: Add ruby-zeitwerk.
[home-page]: Use https.