Merge upstream

.github/workflows/spec.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v1
         with:
-          node-version: '12.x'
+          node-version: '16.x'
       - run: sudo apt-get install xvfb
       - name: Install JavaScript libraries via npm
         run: npm install

.rubocop.yml

@@ -1,8 +1,10 @@
-inherit_from: .rubocop_todo.yml
-
 require:
   - rubocop-rspec
-  - rubocop-rails # Currently disabled below.
+  - rubocop-rails
+  - rubocop-capybara
+  - rubocop-performance
+
+inherit_from: .rubocop_todo.yml
 
 inherit_mode:
   merge: