Always print code coverage after running tests

Note that the RCov formatter is optional, and it's still possible
to see a web page of the detailed code coverage.

Rakefile

@@ -5,7 +5,7 @@ require File.expand_path("config/application", __dir__)
 
 Rails.application.load_tasks
 
-task default: %i[spec lint]
+task default: %i[lint spec]
 
 if defined?(RSpec)
   RSpec::Core::RakeTask.new(:validate) do |t|

spec/spec_helper.rb

@@ -1,10 +1,9 @@
 require "simplecov"
-require "simplecov-rcov"
+SimpleCov.start "rails"
+
 require "capybara/rspec"
 require "factory_bot_rails"
 require "webmock/rspec"
-SimpleCov.formatter = SimpleCov::Formatter::RcovFormatter
-SimpleCov.start "rails"
 
 # This file was generated by the `rails generate rspec:install` command. Conventionally, all
 # specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.