chore(deps): drop support for Ruby 3.0 (#39)

.github/workflows/tests.yml

@@ -46,7 +46,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['3.0', '3.1', '3.2', '3.3']
+        ruby: ['3.1', '3.2', '3.3']
         rails: ['6.1', '7.0', '7.1']
 
     env:

.rubocop.yml

@@ -6,7 +6,7 @@ require:
 
 AllCops:
   NewCops: enable
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.1
 
 Metrics/BlockLength:
   Exclude:

README.md

@@ -9,7 +9,7 @@ This gem allows you to specify enum value translations in your I18n locale files
 ## Requirements
 
 This gem only supports actively maintained versions of Ruby and Rails. Currently, that is:
-* Ruby 3.0+
+* Ruby 3.1+
 * Rails 6.1+
 
 It may work with older versions, but it is not officially supported.

human_enum.gemspec

@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
   spec.email         = ['[email protected]']
 
   # Should always be the lowest maintained version of Ruby
-  spec.required_ruby_version = '>= 3.0.0'
+  spec.required_ruby_version = '>= 3.1'
 
   spec.summary       = 'Adds simple and easy I18n support for Rails enums'
   spec.description   = 'This gem allows you to specify enum value translations