Run tests on newer versions of Ruby and drop 2.5 and 2.6

Author: arashm

.github/workflows/ruby.yml

@@ -9,33 +9,32 @@ name: Ruby
 
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
 
 jobs:
   test:
-
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.5', '2.6', '2.7', '3.0']
+        ruby-version: ["2.7", "3.0", "3.1"]
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby
-    # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
-    # change this to (see https://github.com/ruby/setup-ruby#versioning):
-    # uses: ruby/setup-ruby@v1
-      uses: ruby/setup-ruby@473e4d8fe5dd94ee328fdfca9f8c9c7afc9dae5e
-      with:
-        ruby-version: ${{ matrix.ruby-version }}
-        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
-    - name: Run tests
-      run: bundle exec rake
+      - uses: actions/checkout@v2
+      - name: Set up Ruby
+        # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
+        # change this to (see https://github.com/ruby/setup-ruby#versioning):
+        # uses: ruby/setup-ruby@v1
+        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 rake
 
-    - name: Coveralls
-      uses: coverallsapp/github-action@master
-      with:
-        github-token: ${{ secrets.GITHUB_TOKEN }}
-        path-to-lcov: "./coverage/lcov.info"
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: "./coverage/lcov.info"