chore: add tests for Node 16 (#4146)

.github/workflows/nodejs.yml

@@ -15,17 +15,17 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x]
+        node-version: [12, 14, 16]
 
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1.4.4
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - name: Use cached node_modules
         id: cache
-        uses: actions/cache@v2.1.1
+        uses: actions/cache@v2
         with:
           path: node_modules
           key: nodeModules-${{ hashFiles('**/package-lock.json') }}-${{ matrix.node-version }}