Pin to ruby 3.0 or greater to match Faraday

Author: zachaysan

.rubocop.yml

@@ -4,7 +4,7 @@ Layout/HashAlignment:
   AllowMultipleStyles: true
   EnforcedColonStyle: key
 AllCops:
-  TargetRubyVersion: 2.4  # Pin to flagsmith.gemspec required_ruby_version
+  TargetRubyVersion: 3.0  # Pin to flagsmith.gemspec required_ruby_version
   NewCops: enable
   SuggestExtensions: false
   Exclude:

flagsmith.gemspec

@@ -3,7 +3,7 @@
 require File.expand_path('lib/flagsmith/version', __dir__)
 
 Gem::Specification.new do |spec|
-  spec.required_ruby_version = '>= 2.4.0'
+  spec.required_ruby_version = '>= 3.0.0'
   spec.name = 'flagsmith'
   spec.version = Flagsmith::VERSION
   spec.authors = ['Tom Stuart', 'Brian Moelk', 'Zach Aysan']