Require Ruby >= 3.3 and update CI Ruby versions

Author: dduugg

.github/workflows/main.yml

@@ -16,7 +16,6 @@ jobs:
         ruby:
           - '3.4'
           - '3.3'
-          - '3.2' # EOL: 2026-03-31 (expected)
 
     steps:
       - uses: actions/checkout@v4

.rubocop.yml

@@ -3,7 +3,7 @@ plugins:
   - rubocop-performance
 
 AllCops:
-  TargetRubyVersion: 3.1
+  TargetRubyVersion: 3.3
   SuggestExtensions: false
   NewCops: enable
   Exclude:

chatwerk.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = 'MCP server and API for integrating Packwerk with AI tools like Cursor.'
   spec.homepage = 'https://github.com/rubyatscale/chatwerk'
   spec.license = 'MIT'
-  spec.required_ruby_version = '>= 3.1.0'
+  spec.required_ruby_version = '>= 3.3'
 
   spec.metadata['allowed_push_host'] = 'https://rubygems.org'