fix: apps/koa-esm/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-KOA-10944994

Author: snyk-bot

apps/koa-esm/package.json

@@ -31,7 +31,7 @@
     "axios": "^1.6.8",
     "cross-env": "^7.0.3",
     "got": "^14.4.1",
-    "koa": "^2.15.3",
+    "koa": "^3.0.1",
     "koa-body": "^6.0.1",
     "koa-router": "^12.0.1",
     "ts-node": "^10.9.2",