Trial selenium tests, migrate away from travis

.github/workflows/ruby-selenium.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: Features
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby-version: ['2.7'] # , '2.7', '3.0'
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    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 }}
+
+      - name: Setup chrome driver (for Selenium)
+        uses: nanasess/setup-chromedriver@master
+        # with:
+          # Optional: do not specify to match Chrome's version
+          # chromedriver-version: '88.0.4324.96'
+      - run: |
+          export DISPLAY=:99
+          chromedriver --url-base=/wd/hub &
+          sudo Xvfb -ac :99 -screen 0 1280x1024x24 > /dev/null 2>&1 & # optional
+
+      - name: Install dependencies
+        run: bundle install
+      - name: Prepare DB
+        run: DB=sqlite RAILS_ENV=test bundle exec rake spec:preparedb
+
+      - name: Run RSpec on features
+        run: BROWSER=chrome DB=sqlite bundle exec rspec spec/features