add npm command

Author: andrejpk

.github/workflows/publish-github.yml

@@ -15,7 +15,7 @@ jobs:
           registry-url: "https://npm.pkg.github.com"
           # Defaults to the user or organization that owns the workflow file
           # scope: '@octocat'
-      - run: npm
+      - run: npm install
       - run: npm run build
 
   publish-npm: