disable display environment variable

.github/workflows/ruby_ci.yml

@@ -9,45 +9,47 @@ jobs:
     runs-on: ubuntu-latest
     env:
       TZ: Europe/London
-      DISPLAY: ':99.0'
+      #DISPLAY: ':99.0'
     # Services
     # https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-syntax-for-github-actions#jobsjob_idservices
     services:
       mysql:
         # Use the Mysql docker image https://hub.docker.com/_/mysql
         image: mysql:8.0
         ports:
-         - 3306:3306 # Default port mappings
-         # Monitor the health of the container to mesaure when it is ready
+          - 3306:3306 # Default port mappings
+          # Monitor the health of the container to mesaure when it is ready
         options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
         env:
-          MYSQL_ROOT_PASSWORD: '' # Set root PW to nothing
+          MYSQL_ROOT_PASSWORD: "" # Set root PW to nothing
           MYSQL_ALLOW_EMPTY_PASSWORD: yes
 
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          bundler-cache: true # Runs bundle install and caches gems. See the ruby_test.yml
-                              # example if you need more control over bundler.
+          bundler-cache:
+            true # Runs bundle install and caches gems. See the ruby_test.yml
+            # example if you need more control over bundler.
       - name: Setup database
         run: bundle exec rake db:setup
       - name: Test & publish code coverage
         uses: paambaati/[email protected]
         env:
-          CC_TEST_REPORTER_ID:  ${{ secrets.CC_TEST_REPORTER_ID || '5e399530a457db7a41cd5785ce0536b79e9022b3c2d4382f101310b3b166eb38' }}
+          CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID || '5e399530a457db7a41cd5785ce0536b79e9022b3c2d4382f101310b3b166eb38' }}
         with:
           coverageCommand: bundle exec rspec
-          
+
   lint:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          bundler-cache: true # Runs bundle install and caches gems. See the ruby_test.yml
-                              # example if you need more control over bundler.
+          bundler-cache:
+            true # Runs bundle install and caches gems. See the ruby_test.yml
+            # example if you need more control over bundler.
       - name: Lint
         run: bundle exec rubocop