Log message:
www/ruby-actionview60: update to 6.0.3

Update ruby-actionview60 to 6.0.3.

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

*   annotated_source_code returns an empty array so TemplateErrors without a
    template in the backtrace are surfaced properly by DebugExceptions.

    *Guilherme Mansur*, *Kasper Timm Hansen*

*   Add autoload for SyntaxErrorInTemplate so syntax errors are correctly raised \ 
by DebugExceptions.

    *Guilherme Mansur*, *Gannon McGibbon*

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

Log message:
www/ruby-actionview60: add package version 6.0.2.2

Add ruby-actionview60 package version 6.0.2.2.

Action View provides simple, battle-tested conventions and helpers for
building web pages.

This is for Ruby on Rails 6.0.