Log Message:
lang/rails60: update to 6.0.3.2

Update Ruby on Rails to 6.0.3.2.

www/ruby-actionpack60 is the really updated package and other packages
have no change except version.

CHANGELOG of www/ruby-actionpack60 is here:

## Rails 6.0.3.2 (June 17, 2020) ##

* [CVE-2020-8185] Only allow ActionableErrors if
  show_detailed_exceptions is enabled