add rails 7.0 support

Author: urkle

.github/workflows/prs.yml

@@ -24,7 +24,10 @@ jobs:
         - '5.2'
         - '6.0'
         - '6.1'
+        - '7.0'
         exclude:
+        - ruby: '2.5'
+          activerecord: '7.0'
         - ruby: '3.0'
           activerecord: '5.1'
         - ruby: '3.0'

ar-multidb.gemspec

@@ -20,8 +20,8 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 2.5.0'
 
-  s.add_runtime_dependency 'activerecord', '>= 5.1', '< 6.2'
-  s.add_runtime_dependency 'activesupport', '>= 5.1', '< 6.2'
+  s.add_runtime_dependency 'activerecord', '>= 5.1', '< 7.1'
+  s.add_runtime_dependency 'activesupport', '>= 5.1', '< 7.1'
 
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.8'

gemfiles/activerecord-7.0.gemfile

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+gem 'activerecord', '~> 7.0.0'
+
+gemspec path: '..'