feat: require Ruby 3.1 or newer

.github/workflows/integration.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [ '3.0', '3.1', '3.2', '3.3', '3.4', '4.0' ]
+        ruby-version: [ '3.1', '3.2', '3.3', '3.4', '4.0' ]
       fail-fast: false
 
     steps:

.rubocop.yml

@@ -8,7 +8,7 @@ AllCops:
     - 'lib/zitadel/client/api/**/*'
     - 'vendor/**/*'
   NewCops: enable
-  TargetRubyVersion: 3.0
+  TargetRubyVersion: 3.1
 
 Layout/LineLength:
   Max: 130

README.md

@@ -33,7 +33,7 @@ Zitadel website and obtain the necessary credentials to access the API.
 
 ### Minimum Requirements
 
-Ensure you have Ruby 3 or higher installed.
+Ensure you have Ruby 3.1 or higher installed.
 
 ## Using the SDK
 

zitadel-client.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |gemspec|
   gemspec.description =
     "Official Zitadel SDK for Ruby. Authenticate and access Zitadel's authentication and management APIs in Ruby."
   gemspec.license = 'Apache-2.0'
-  gemspec.required_ruby_version = '>= 3.0'
+  gemspec.required_ruby_version = '>= 3.1'
   gemspec.metadata = { 'rubygems_mfa_required' => 'true' }
 
   gemspec.add_dependency 'cgi', '>= 0.1'