fix: examples/todoapp/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116

Author: snyk-bot

examples/todoapp/package.json

@@ -9,7 +9,7 @@
                 "posix-getopt": "^1.2.1",
                 "restify-errors": "^8.0.2",
                 "restify-clients": "^3.1.0",
-                "restify": "^8.6.1"
+                "restify": "^9.0.0"
         },
         "devDependencies": {
                 "mocha": "^10.0.0",