fix CI node install failure.

Author: JFU-NAVA-PBC

.github/workflows/ci.yaml

@@ -8,7 +8,7 @@ jobs:
 
         - uses: actions/setup-node@v4
           with:
-            node-version: 19
+            node-version: 20
 
         - name: Install server
           run: yarn --cwd server install