Update build.yml

Author: demchenkoalex

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup Node.js environment
         uses: actions/setup-node@v1
         with:
-          node-version: 15.x
+          node-version: 16.x
 
       - name: Restore cache
         id: cache