Build(deps-dev): update @types/node requirement in /server

Updates the requirements on [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) to permit the latest version.
- [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: 25.5.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

server/package.json

@@ -70,7 +70,7 @@
     "@types/cors": "^2.8.19",
     "@types/express": "^5.0.6",
     "@types/js-yaml": "^4.0.9",
-    "@types/node": "^25.3.5",
+    "@types/node": "^25.5.0",
     "@vitest/coverage-v8": "^4.1.0",
     "esbuild": "^0.27.3",
     "eslint": "^10.0.3",