(chore) bump GHA node version

Author: antoine92190

.github/workflows/build.yml

@@ -27,6 +27,6 @@ jobs:
       - name: Use Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '12.x'
+          node-version: '16.x'
       - run: npm install
       - run: npm test