Top-level uses for GH actions

.github/workflows/jest-tests.yml

@@ -9,16 +9,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Use Node.js
-      uses: actions/setup-node@v1
+    - uses: actions/setup-node@v2
       with:
-        node-version: '12.x'
+        node-version: '12'
     - name: Install Code Climate test-reporter
       run: |
         curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
         chmod +x ./cc-test-reporter
     - name: Install modules
-      run: npm install
+      run: npm ci
     - name: Run tests
       run: |
         ./cc-test-reporter before-build