ci: update node version during publish

Author: gnikit

.github/workflows/publish.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
       - run: npm ci
 
       # Package and publish the extension to VS Code Marketplace