Enable Ruby 3.1 / Rails 6.1 by including gems

Author: petergoldstein

.github/workflows/ci.yml

@@ -18,8 +18,6 @@ jobs:
             rails: '5.2'
           - ruby: '3.1'
             rails: '6.0'
-          - ruby: '3.1'
-            rails: '6.1'
           - ruby: '3.0'
             rails: '5.1'
           - ruby: '3.0'

gemfiles/rails_6.1.gemfile

@@ -10,4 +10,11 @@ group :test do
   gem "codecov", require: false
 end
 
+if RUBY_VERSION >= '3.1'
+  gem 'net-smtp', require: false
+  gem 'net-imap', require: false
+  gem 'net-pop', require: false
+end
+
+
 gemspec path: "../"