Fix syntax error from previous commit (#490)

Author: kurkle

.github/workflows/npmpublish.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js
-    - uses: actions/setup-node@v2
+      uses: actions/setup-node@v2
       with:
         node-version: 16
     - name: Test