Log message:
www/ruby-actioncable60: update to 6.0.3

Update to ruby-actioncable60 to 6.0.3.

## Rails 6.0.3 (May 06, 2020) ##

*   No changes.

Log message:
Restrict some more rails packages to Ruby 2.5+

Log message:
www/ruby-actioncable60: add package version 6.0.2.2

Add ruby-actioncable60 package version 6.0.2.2.

# Action Cable - Integrated WebSockets for Rails

Action Cable seamlessly integrates WebSockets with the rest of your Rails
application.  It allows for real-time features to be written in Ruby in the
same style and form as the rest of your Rails application, while still being
performant and scalable.  It's a full-stack offering that provides both a
client-side JavaScript framework and a server-side Ruby framework.  You have
access to your full domain model written with Active Record or your ORM of
choice.

This is for Ruby on Rails 6.0.