chore(deps): bump @types/node in /templates/typescript-tests

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.16.19 to 25.0.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 25.0.9
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

templates/typescript-tests/package.json

@@ -31,7 +31,7 @@
     "@types/koa": "^2.15.0",
     "@types/koa-bodyparser": "^4.3.12",
     "@types/koa__router": "^12.0.4",
-    "@types/node": "^20.12.12"
+    "@types/node": "^25.0.9"
   },
   "pnpm": {
     "onlyBuiltDependencies": [