Update npm-publish.yml

Specify Node.js version

Author: XhmikosR

.github/workflows/npm-publish.yml

@@ -15,6 +15,8 @@ jobs:
         uses: actions/checkout@v3
       - name: Use Node.js
         uses: actions/setup-node@v3
+        with:
+          node-version: 16
       # We're using npm to publish due to: https://github.com/yarnpkg/yarn/issues/5779
       - run: npm ci
       - id: publish