Require Ruby 3.1+ and modernize CI

.rubocop.yml

@@ -1,8 +1,9 @@
 ---
 require:
-  - chefstyle
+  - cookstyle/chefstyle
 
 AllCops:
+  TargetRubyVersion: 3.1
   Include:
     - "**/*.rb"
   Exclude:

.yamllint

@@ -0,0 +1,6 @@
+---
+extends: default
+rules:
+  line-length:
+    max: 256
+    level: warning

Gemfile

@@ -19,11 +19,11 @@ group :development do
   gem "pry-stack_explorer"
 end
 
-group :chefstyle do
-  gem "chefstyle"
-end
-
 group :docs do
   gem "yard"
 end
 
+
+group :cookstyle do
+  gem "cookstyle"
+end

Rakefile

@@ -12,13 +12,13 @@ desc "Run all test suites"
 task test: :unit
 
 begin
-  require "chefstyle"
+  require "cookstyle/chefstyle"
   require "rubocop/rake_task"
   RuboCop::RakeTask.new(:style) do |task|
     task.options += ["--display-cop-names", "--no-color"]
   end
 rescue LoadError
-  puts "chefstyle is not available. (sudo) gem install chefstyle to do style checking."
+  puts "cookstyle/chefstyle is not available. (sudo) gem install cookstyle to do style checking."
 end
 
 desc "Run all quality tasks"

lib/kitchen/driver/hyperv.rb

@@ -323,10 +323,10 @@ def connection
         backend = remote_hyperv ? "winrm" : "local"
 
         train = Train.create(backend, {
-                              host:        config[:hyperv_server],
-                              user:        config[:hyperv_username],
-                              password:    config[:hyperv_password],
-                              ssl:         config[:hyperv_ssl],
+                              host: config[:hyperv_server],
+                              user: config[:hyperv_username],
+                              password: config[:hyperv_password],
+                              ssl: config[:hyperv_ssl],
                               self_signed: config[:hyperv_insecure],
                             })
         @connection = train.connection