Build(deps-dev): bump typescript from 5.9.3 to 6.0.2 in /server

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.9.3...v6.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

server/package.json

@@ -77,7 +77,7 @@
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-prettier": "^5.5.5",
     "prettier": "^3.8.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.2",
     "typescript-eslint": "^8.57.1",
     "vitest": "^4.1.0"
   },