Update CI config

.github/workflows/test.yml

@@ -1,7 +1,9 @@
 name: Tests
+
 on: [push, pull_request]
+
 env:
-  CI: true
+  FORCE_COLOR: 2
 
 jobs:
   run:
@@ -11,19 +13,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [6, 8, 10, 12, 14]
+        node: [10, 12, 14, 16]
 
     steps:
       - name: Clone repository
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}
 
       - name: Install npm dependencies
-        run: npm install # switch to `npm ci` when Node.js 6.x is dropped
+        run: npm ci
 
       - name: Run tests
         run: npm test