Add Ruby 3.4 support (#225)

Starting from Ruby 3.4, mutex_m has been changed from a default gem to a bundled gem. In systems using Bundler (such as Rails applications), the gem needs to be explicitly listed in the Gemfile and installed. This change ensures that the mutex_m library is properly available in Ruby 3.4 environments.

Author: hatsu38

.github/workflows/lint.yml

@@ -15,6 +15,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rake rubocop

.github/workflows/mysql.yml

@@ -3,7 +3,7 @@ on: [push, pull_request]
 
 jobs:
   test-latest:
-    name: "Active Record 8.0 + Ruby 3.3"
+    name: "Active Record 8.0 + Ruby 3.4"
     runs-on: ubuntu-latest
     services:
       mysql:
@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - name: Prepare the database
         run: |
@@ -63,7 +63,7 @@ jobs:
           - 3306:3306
     strategy:
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
         active_record: ["7.0", "7.1", "7.2"]
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/Gemfile.activerecord-${{ matrix.active_record }}.x

.github/workflows/postgresql.yml

@@ -3,7 +3,7 @@ on: [push, pull_request]
 
 jobs:
   test-latest:
-    name: "Active Record 8.0 + Ruby 3.3"
+    name: "Active Record 8.0 + Ruby 3.4"
     runs-on: ubuntu-latest
     services:
       postgres:
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - name: Prepare PostgreSQL
         run: createdb active_record_doctor_secondary
@@ -63,7 +63,7 @@ jobs:
           - 5432:5432
     strategy:
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
         active_record: ["7.0", "7.1", "7.2"]
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/Gemfile.activerecord-${{ matrix.active_record }}.x

.github/workflows/sqlite.yml

@@ -3,15 +3,15 @@ on: [push, pull_request]
 
 jobs:
   test-latest:
-    name: "Active Record 8.0 + Ruby 3.3"
+    name: "Active Record 8.0 + Ruby 3.4"
     runs-on: ubuntu-latest
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/Gemfile.activerecord-8.0.x
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - name: Run the test suite against SQLite
         run: bundle exec rake test:sqlite3
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
         active_record: ["7.0", "7.1", "7.2"]
     env:
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/Gemfile.activerecord-${{ matrix.active_record }}.x

gemfiles/Gemfile.activerecord-7.0.x

@@ -6,3 +6,5 @@ gem "pg", "~> 1.5.9"
 gem "mysql2", "~> 0.5.6"
 gem "sqlite3", "~> 1.4"
 gem "logger"
+gem "mutex_m"
+gem "bigdecimal"