chore: Update Node.js version to 20 in GitHub Actions workflow

.github/workflows/publish.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Setup Node.js
       uses: actions/setup-node@v2
       with:
-        node-version: '14'
+        node-version: '20'
         registry-url: 'https://registry.npmjs.org'
     - name: Install dependencies
       run: npm ci