Update Ruby report templates

guides/bug_report_templates/action_controller_gem.rb

@@ -8,7 +8,7 @@
 gemfile(true) do
   source 'https://rubygems.org'
   # Activate the gem you are reporting the issue against.
-  gem 'rails', '4.2.0'
+  gem 'rails', '5.0.0.rc1'
 end
 
 require 'rack/test'

guides/bug_report_templates/active_record_gem.rb

@@ -8,7 +8,7 @@
 gemfile(true) do
   source 'https://rubygems.org'
   # Activate the gem you are reporting the issue against.
-  gem 'activerecord', '4.2.0'
+  gem 'activerecord', '5.0.0.rc1'
   gem 'sqlite3'
 end
 

guides/bug_report_templates/generic_gem.rb

@@ -8,7 +8,7 @@
 gemfile(true) do
   source 'https://rubygems.org'
   # Activate the gem you are reporting the issue against.
-  gem 'activesupport', '4.2.0'
+  gem 'activesupport', '5.0.0.rc1'
 end
 
 require 'active_support/core_ext/object/blank'