Test against Rails 6.0.0 final

Author: georgeclaghorn

Appraisals

@@ -18,7 +18,7 @@ end
 
 if RUBY_VERSION >= "2.5.0"
   appraise "rails-6-0" do
-    gem "rails", "~> 6.0.0.rc1"
+    gem "rails", "~> 6.0.0"
   end
 
   appraise "rails-head" do

gemfiles/rails_6_0.gemfile

@@ -5,6 +5,6 @@ source "https://rubygems.org"
 gem "rake"
 gem "mocha", require: false
 gem "appraisal"
-gem "rails", "~> 6.0.0.rc1"
+gem "rails", "~> 6.0.0"
 
 gemspec path: "../"