feat: add github action

.github/workflows/ruby.yml

@@ -0,0 +1,39 @@
+---
+# 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:
+      - main
+      - master
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-version: ['2.7', '3.0', '3.2']
+        faraday-version: ['~> 1']
+    env:
+      FARADAY_VERSION: ${{ matrix.faraday-version }}
+    timeout-minutes: 5 # Typically ends within 1-2 min
+    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: Check coding style
+        run: bundle exec standardrb
+      - name: Run tests
+        run: bundle exec rake spec