Install python2 from apt so that we can use ubuntu-latest

.github/workflows/ci.yml

@@ -9,9 +9,7 @@ on:
 jobs:
   erb_javascript_rails:
     runs-on: ubuntu-latest
-    container:
-      image: ruby:2.5.8-buster
-    name: "ERBLint, ESCheck, ESLint, and RSpec"
+    name: "ES Check, ERBLint, ESLint, and RSpec"
     env:
       RAILS_ENV: test
     services:
@@ -29,40 +27,25 @@ jobs:
           --health-timeout 5s
           --health-retries 5
     steps:
-    - uses: actions/checkout@v3
     - name: Install required apt packages
-      run: apt-get install -yqq libpq-dev
-      # TODO: Migrate this to use ruby/setup-ruby when we're
-      # able to use a new version of Node.js.
-
-      # There is a python-2.7 dependency that can't be met without using the
-      # ruby-2.5.8-buster Docker image.
-    - name: Bundle install
-      run: bundle install -j $(nproc) --path vendor/bundle
+      run: sudo apt-get install -y python2
+    - uses: actions/checkout@v3
+    - uses: ruby/setup-ruby@v1
+      with:
+        bundler-cache: true
     - uses: actions/setup-node@v3
       with:
         node-version: 10.13.x
-    - name: Run yarn install
-      uses: borales/actions-yarn@v4
-      with:
-        cmd: install
-    - name: Run yarn lint
-      uses: borales/actions-yarn@v4
-      with:
-        cmd: lint
-    - name: Run ERBLint
-      uses: borales/actions-yarn@v4
-      with:
-        cmd: lint-erb
+        cache: 'yarn'
     - name: Precomple Rails assets
       run: bundle exec rails assets:precompile
-    - name: Run yarn es-check
-      uses: borales/actions-yarn@v4
-      with:
-        cmd: es-check
+    - name: Run ES Check
+      run: yarn es-check
+    - name: Run ERBLint
+      run: yarn lint-erb
+    - name: Run ESLint
+      run: yarn lint
     - name: Setup DB and run RSpec
-      env:
-        DATABASE_HOST: postgres
       run: |-
         bundle exec rails db:create
         bundle exec rake db:schema:load --trace