Loosen ActiveRecord restriction to work with Rails 8

Taken from ctran#1031

Author: shipstar

Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 ruby '>= 2.4.0'
 
-gem 'activerecord', '>= 4.2.5', '< 6', require: false
+gem 'activerecord', '>= 4.2.5', '< 9', require: false
 gem 'rake', require: false
 
 group :development do

annotate.gemspec

@@ -23,7 +23,7 @@ Gem::Specification.new do |s|
 
   s.specification_version = 4 if s.respond_to? :specification_version
   s.add_runtime_dependency(%q<rake>, '>= 10.4', '< 14.0')
-  s.add_runtime_dependency(%q<activerecord>, ['>= 3.2', '< 8.0'])
+  s.add_runtime_dependency(%q<activerecord>, ['>= 3.2', '< 9.0'])
 
   s.metadata = {
     "bug_tracker_uri" => "https://github.com/ctran/annotate_models/issues/",