Update Github Actions to use Node 16

.github/workflows/code-review.yml

@@ -7,11 +7,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v1
-      - name: Use Node.js 10.x
-        uses: actions/setup-node@v1
+      - uses: actions/checkout@v2
+      - name: Use Node.js 16.x
+        uses: actions/setup-node@v2
         with:
-          node-version: 10.x
+          node-version: 16
       - name: npm install, build, and test
         run: |
           npm install