Lower min version of activesupport

Author: pak-ioki

airship-ruby.gemspec

@@ -39,7 +39,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'activesupport', '>= 7.1', '< 9.0'
+  spec.add_dependency 'activesupport', '>= 6.1', '< 9.0'
   spec.add_dependency 'faraday', '~> 2.7'
   spec.add_dependency 'rake', '~> 13.0'