Update activerecord and activesupport version (#1551)

* Update activerecord and activesupport version

* Change activerecord and activesupport version to >=7.1

Author: panacotar

ransack.gemspec

@@ -15,8 +15,8 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 3.0'
   s.license     = 'MIT'
 
-  s.add_dependency 'activerecord', '>= 6.1.5'
-  s.add_dependency 'activesupport', '>= 6.1.5'
+  s.add_dependency 'activerecord', '>= 7.1'
+  s.add_dependency 'activesupport', '>= 7.1'
   s.add_dependency 'i18n'
 
   s.files         = `git ls-files`.split("\n")