Create CI configuration (#52)

* Create ruby.yml

* Start with Ruby v3.4

* Update ruby.yml

* bundle lock --add-platform x86_64-linux

* Update ruby.yml

Author: dogweather

.github/workflows/ruby.yml

@@ -0,0 +1,35 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
+# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
+
+name: Ruby
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby-version: ['3.2', '3.3', '3.4.4', '3.4.5']
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Run tests
+      run: bundle exec rspec

Gemfile.lock

@@ -65,6 +65,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-24
+  x86_64-linux
 
 DEPENDENCIES
   bundler (~> 2.4)