Use Node 16

Author: apple502j

.github/workflows/build.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: 14.x
+          node-version: 16.x
       - name: Generate token
         uses: tibdex/github-app-token@v1
         id: generate-token