Bump @hono/node-server from 1.19.12 to 1.19.13 in /example

Bumps [@hono/node-server](https://github.com/honojs/node-server) from 1.19.12 to 1.19.13.
- [Release notes](https://github.com/honojs/node-server/releases)
- [Commits](honojs/node-server@v1.19.12...v1.19.13)

---
updated-dependencies:
- dependency-name: "@hono/node-server"
  dependency-version: 1.19.13
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

example/package.json

@@ -19,7 +19,7 @@
     "@eslint/compat": "2.0.3",
     "@eslint/js": "10.0.1",
     "@hono/mcp": "0.2.5",
-    "@hono/node-server": "1.19.12",
+    "@hono/node-server": "1.19.13",
     "@stylistic/eslint-plugin": "5.10.0",
     "@types/aws-lambda": "8.10.161",
     "@types/node": "25.5.0",