fix: sample-app/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-FOLLOWREDIRECTS-6444610
- https://snyk.io/vuln/SNYK-JS-FOLLOWREDIRECTS-6141137

Author: snyk-bot

sample-app/package.json

@@ -22,7 +22,7 @@
     "react-dom": "^18.2.0",
     "server-only": "^0.0.1",
     "tailwindcss": "^3.3.3",
-    "twilio": "^4.15.0",
+    "twilio": "^5.0.4",
     "twilio-taskrouter": "file:../",
     "typescript": "^5.1.6"
   },