Drop ruby 2.6 support, will be EOL end of month

.github/workflows/ci.yml

@@ -16,7 +16,6 @@ jobs:
         ruby:
           - 3.0
           - 2.7
-          - 2.6
         gemfile:
           - Gemfile
           - test/gemfiles/no-rails.Gemfile

.rubocop.yml

@@ -3,7 +3,7 @@ require:
   - rubocop-rake
 
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 2.7
   NewCops: enable
   Exclude:
     - "bin/**/*"

diaspora_federation-json_schema.gemspec

@@ -22,5 +22,5 @@ Gem::Specification.new do |s|
 
   s.files = Dir["lib/diaspora_federation/schemas.rb", "lib/diaspora_federation/schemas/*.json"]
 
-  s.required_ruby_version = ">= 2.6"
+  s.required_ruby_version = ">= 2.7"
 end

diaspora_federation-rails.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
   s.files = Dir["app/**/*", "config/routes.rb", "config/initializers/*",
                 "lib/diaspora_federation/{engine,rails}.rb", "LICENSE", "README.md", "Changelog.md"]
 
-  s.required_ruby_version = ">= 2.6"
+  s.required_ruby_version = ">= 2.7"
 
   s.add_dependency "actionpack", ">= 5.2", "< 7"
 

diaspora_federation-test.gemspec

@@ -22,7 +22,7 @@ Gem::Specification.new do |s|
 
   s.files = Dir["lib/diaspora_federation/test.rb", "lib/diaspora_federation/test/*"]
 
-  s.required_ruby_version = ">= 2.6"
+  s.required_ruby_version = ">= 2.7"
 
   s.add_dependency "diaspora_federation", DiasporaFederation::VERSION
   s.add_dependency "fabrication", "~> 2.16"

diaspora_federation.gemspec

@@ -27,7 +27,7 @@ Gem::Specification.new do |s|
         "lib/diaspora_federation/test/*",
         "lib/tasks/*.rake"]
 
-  s.required_ruby_version = ">= 2.6"
+  s.required_ruby_version = ">= 2.7"
 
   s.add_dependency "faraday", "~> 1.0"
   s.add_dependency "faraday_middleware", "~> 1.0"