Run against latest Rails

Author: dbussink

.github/workflows/ruby.yml

@@ -9,13 +9,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Ruby 2.7
+    - name: Set up Ruby 2.7.2
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.7.x
-
+        ruby-version: 2.7.2
     - name: Build and test
       run: |
-        gem install bundler:1.16.1
         bundle install --binstubs
         bin/rspec

Gemfile

@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rails', '~> 6.0'
+gem 'rails'
 
 group :development, :test do
   gem "rspec-rails", "~> 3"