ci(release): use Node 20 for vsce packaging

Author: Karthikprasadm

.github/workflows/release.yml

@@ -74,7 +74,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '18'
+          node-version: '20'
       - name: Package VS Code extension
         working-directory: sup-lang/vscode-extension
         run: |