[fix] Sandbox config node version

yuxizhe · yuxizhe · commit 7f85495b7e25 · 2022-06-29T02:50:50.000+08:00
diff --git a/packages/examples/sandbox.config.json b/packages/examples/sandbox.config.json
@@ -1,3 +1,5 @@
 {
-  "node": "16"
+  "container": {
+    "node": "16"
+  }
 }
