Update gem requirement to allow Rails 7.1 (#2453)

* Update gem requirement to allow Rails 7.1

* Add rdoc to Gemfile

* Remove upper limit of Rails version

Co-authored-by: Andreas Finger <webmaster@mediafinger.com>

---------

Co-authored-by: Andreas Finger <webmaster@mediafinger.com>

Author: schinery

.github/workflows/ci.yml

@@ -14,13 +14,13 @@ jobs:
         include:
           # Recent Rubies and Rails
           - ruby-version: '3.2'
-            rails-version: '7.0'
+            rails-version: '7.1'
           - ruby-version: '3.1'
-            rails-version: '7.0'
+            rails-version: '7.1'
           - ruby-version: '3.0'
-            rails-version: '7.0'
+            rails-version: '7.1'
           - ruby-version: '2.7'
-            rails-version: '7.0'
+            rails-version: '7.1'
           - ruby-version: '2.6'
             rails-version: '6.1'
           - ruby-version: '2.6'

Gemfile

@@ -88,6 +88,7 @@ end
 group :development, :test do
   if RUBY_VERSION < '3.0'
     gem 'rubocop', '~> 0.40.0', require: false
+    gem 'rdoc', '6.3.3', require: false
   else
     gem 'rubocop', '~> 1.56.0', require: false
     gem 'rubocop-minitest', '~> 0.31.0', require: false

active_model_serializers.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.1'
 
-  rails_versions = ['>= 4.1', '< 7.1']
+  rails_versions = ['>= 4.1']
   spec.add_runtime_dependency 'activemodel', rails_versions
   # 'activesupport', rails_versions
   # 'builder'