Drop Ruby 2.6

Author: raymondjavaxx

.github/workflows/ci.yml

@@ -10,12 +10,12 @@ jobs:
     strategy:
       matrix:
         ruby-version:
-          - "2.6"
           - "2.7"
           - "3.0"
           - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby

dotstrings.gemspec

@@ -22,6 +22,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rubocop-rake'
   s.add_development_dependency 'simplecov'
 
-  s.required_ruby_version = '>= 2.6.0'
+  s.required_ruby_version = '>= 2.7.0'
   s.metadata['rubygems_mfa_required'] = 'true'
 end