Support for older versions of ruby (#9)

.github/workflows/ruby.yml

@@ -7,17 +7,42 @@ on:
     branches: [ "main" ]
 
 jobs:
-  test:
+  lint:
+    name: RuboCop
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@ec02537da5712d66d4d50a0f33b7eb52773b5ed1
+      - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.1'
+          ruby-version: '2.7'
+
       - name: Install dependencies
         run: bundle install
-      - name: Run cops
+
+      - name: Run RuboCop
         run: bundle exec rubocop
-      - name: Run test
-        run: rake test
+
+  test:
+    name: Ruby ${{ matrix.ruby }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false # don't fail all matrix builds if one fails
+      matrix:
+        ruby:
+          - '2.7'
+          - '3.0'
+          - '3.1'
+          - '3.2'
+          - '3.3'
+    continue-on-error: ${{ endsWith(matrix.ruby, 'head') }}
+    steps:
+    - uses: actions/checkout@v3
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+
+    - name: Install dependencies
+      run: bundle install
+
+    - name: Run tests
+      run: bundle exec rake test

Gemfile.lock

@@ -50,6 +50,7 @@ GEM
     unicode-display_width (2.5.0)
 
 PLATFORMS
+  ruby
   x86_64-darwin-20
   x86_64-linux
 

activeyaml.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.files       = Dir.glob('lib/**/*')
   s.homepage    = 'https://github.com/leonovk/activeyaml'
   s.license     = 'MIT'
-  s.required_ruby_version = '>= 3.1.0'
+  s.required_ruby_version = '>= 2.7'
   s.metadata['homepage_uri'] = s.homepage
   s.metadata['source_code_uri'] = s.homepage
   s.metadata['documentation_uri'] = s.homepage

lib/active_yaml/method_mapping.rb

@@ -6,7 +6,7 @@ module ActiveYaml
   # A module containing methods that allow you to track method calls,
   # and compare them with data from the YML file
   module MethodMapping
-    def method_missing(method, *args, &)
+    def method_missing(method, *args, &block)
       value = yaml_data[method.to_s]
 
       if value

lib/active_yaml/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module ActiveYaml
-  VERSION = '1.2.2'
+  VERSION = '1.2.3'
 end

lib/active_yaml/yaml_hash.rb

@@ -16,7 +16,7 @@ def hash
 
     # The main logic of this class is implemented in this method.
     # Allows you to filter method calls and redirect them to a hash by key
-    def method_missing(method, *args, &)
+    def method_missing(method, *args, &block)
       value = @hash[method.to_s]
 
       if value